Apply Mongoose docs edits by Ev

PUBLISHED_FROM=5cd78790a03580aa23dd3d2d8b825ad449083cc2
This commit is contained in:
Dmitry Frank 2016-07-26 16:53:33 +02:00 committed by Cesanta Bot
parent 4f210cd8eb
commit 849ec1684a
94 changed files with 509 additions and 491 deletions

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@ -8,6 +8,6 @@ signature: |
size_t len);
---
Add new option to mg_coap_message structure.
Adds a new option to mg_coap_message structure.
Returns pointer to the newly created option.

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@ -6,6 +6,6 @@ signature: |
void mg_coap_free_options(struct mg_coap_message *cm);
---
Free the memory allocated for options,
if cm paramater doesn't contain any option does nothing.
Frees the memory allocated for options.
If the cm paramater doesn't contain any option it does nothing.

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@ -6,13 +6,13 @@ signature: |
uint32_t mg_coap_parse(struct mbuf *io, struct mg_coap_message *cm);
---
Parse COAP message and fills mg_coap_message and returns cm->flags.
Parses CoAP message and fills mg_coap_message and returns cm->flags.
This is a helper function.
NOTE: usually CoAP work over UDP, so lack of data means format error,
but in theory it is possible to use CoAP over TCP (according to RFC)
NOTE: usually CoAP works over UDP, so lack of data means format error.
But, in theory, it is possible to use CoAP over TCP (according to RFC)
The caller have to check results and treat COAP_NOT_ENOUGH_DATA according to
The caller has to check results and treat COAP_NOT_ENOUGH_DATA according to
underlying protocol:
- in case of UDP COAP_NOT_ENOUGH_DATA means COAP_FORMAT_ERROR,

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@ -6,7 +6,7 @@ signature: |
uint32_t mg_coap_send_ack(struct mg_connection *nc, uint16_t msg_id);
---
Compose CoAP acknowledgement from `mg_coap_message`
and send it into `nc` connection.
Composes CoAP acknowledgement from `mg_coap_message`
and sends it into `nc` connection.
Return value: see `mg_coap_send_message()`

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@ -7,9 +7,9 @@ signature: |
struct mg_coap_message *cm);
---
Compose CoAP message from `mg_coap_message`
and send it into `nc` connection.
Return 0 on success. On error, it is a bitmask:
Composes a CoAP message from `mg_coap_message`
and sends it into `nc` connection.
Returns 0 on success. On error, it is a bitmask:
- `#define MG_COAP_ERROR 0x10000`
- `#define MG_COAP_FORMAT_ERROR (MG_COAP_ERROR | 0x20000)`

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@ -6,5 +6,5 @@ signature: |
int mg_set_protocol_coap(struct mg_connection *nc);
---
Set CoAP protocol handler - trigger CoAP specific events
Sets CoAP protocol handler - triggers CoAP specific events.

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@ -7,18 +7,18 @@ signature: |
struct mg_dns_message *msg);
---
Create a DNS reply.
Creates a DNS reply.
The reply will be based on an existing query message `msg`.
The query body will be appended to the output buffer.
"reply + recursion allowed" will be added to the message flags and
"reply + recursion allowed" will be added to the message flags and the
message's num_answers will be set to 0.
Answer records can be appended with `mg_dns_send_reply` or by lower
level function defined in the DNS API.
In order to send the reply use `mg_dns_send_reply`.
It's possible to use a connection's send buffer as reply buffers,
In order to send a reply use `mg_dns_send_reply`.
It's possible to use a connection's send buffer as reply buffer,
and it will work for both UDP and TCP connections.
Example:

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@ -9,10 +9,10 @@ signature: |
size_t rdata_len);
---
Append a DNS reply record to the IO buffer and to the DNS message.
Appends a DNS reply record to the IO buffer and to the DNS message.
The message num_answers field will be incremented. It's caller's duty
to ensure num_answers is propertly initialized.
The message's num_answers field will be incremented. It's the caller's duty
to ensure num_answers is properly initialised.
Returns -1 on error.

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@ -6,12 +6,12 @@ signature: |
void mg_dns_send_reply(struct mg_connection *nc, struct mg_dns_reply *r);
---
Send a DNS reply through a connection.
Sends a DNS reply through a connection.
The DNS data is stored in an IO buffer pointed by reply structure in `r`.
This function mutates the content of that buffer in order to ensure that
the DNS header reflects size and flags of the mssage, that might have been
updated either with `mg_dns_reply_record` or by direct manipulation of
the DNS header reflects the size and flags of the message, that might have
been updated either with `mg_dns_reply_record` or by direct manipulation of
`r->message`.
Once sent, the IO buffer will be trimmed unless the reply IO buffer

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@ -6,10 +6,10 @@ signature: |
int mg_dns_copy_questions(struct mbuf *io, struct mg_dns_message *msg);
---
Append already encoded questions from an existing message.
Appends already encoded questions from an existing message.
This is useful when generating a DNS reply message which includes
all question records.
Return number of appened bytes.
Returns the number of appended bytes.

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@ -8,11 +8,11 @@ signature: |
size_t rlen);
---
Encode and append a DNS resource record to an IO buffer.
Encodes and appends a DNS resource record to an IO buffer.
The record metadata is taken from the `rr` parameter, while the name and data
are taken from the parameters, encoded in the appropriate format depending on
record type, and stored in the IO buffer. The encoded values might contain
record type and stored in the IO buffer. The encoded values might contain
offsets within the IO buffer. It's thus important that the IO buffer doesn't
get trimmed while a sequence of records are encoded while preparing a DNS
*reply.
@ -21,5 +21,5 @@ This function doesn't update the `name` and `rdata` pointers in the `rr`
*struct
because they might be invalidated as soon as the IO buffer grows again.
Return the number of bytes appened or -1 in case of error.
Returns the number of bytes appened or -1 in case of error.

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@ -7,7 +7,7 @@ signature: |
struct mg_dns_message *msg);
---
Insert a DNS header to an IO buffer.
Inserts a DNS header to an IO buffer.
Return number of bytes inserted.
Returns the number of bytes inserted.

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@ -8,7 +8,7 @@ signature: |
size_t data_len);
---
Parse the record data from a DNS resource record.
Parses the record data from a DNS resource record.
- A: struct in_addr *ina
- AAAA: struct in6_addr *ina

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@ -7,15 +7,15 @@ signature: |
char *dst, int dst_len);
---
Uncompress a DNS compressed name.
Uncompresses a DNS compressed name.
The containing dns message is required because the compressed encoding
The containing DNS message is required because of the compressed encoding
and reference suffixes present elsewhere in the packet.
If name is less than `dst_len` characters long, the remainder
of `dst` is terminated with `\0' characters. Otherwise, `dst` is not
*terminated.
If the name is less than `dst_len` characters long, the remainder
of `dst` is terminated with `\0` characters. Otherwise, `dst` is not
terminated.
If `dst_len` is 0 `dst` can be NULL.
Return the uncompressed name length.
Returns the uncompressed name length.

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@ -7,5 +7,5 @@ signature: |
int query_type);
---
Send a DNS query to the remote end.
Sends a DNS query to the remote end.

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@ -6,11 +6,11 @@ signature: |
void mg_set_protocol_dns(struct mg_connection *nc);
---
Attach built-in DNS event handler to the given listening connection.
Attaches a built-in DNS event handler to the given listening connection.
DNS event handler parses incoming UDP packets, treating them as DNS
requests. If incoming packet gets successfully parsed by the DNS event
handler, a user event handler will receive `MG_DNS_REQUEST` event, with
The DNS event handler parses the incoming UDP packets, treating them as DNS
requests. If an incoming packet gets successfully parsed by the DNS event
handler, a user event handler will receive an `MG_DNS_REQUEST` event, with
`ev_data` pointing to the parsed `struct mg_dns_message`.
See

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@ -10,16 +10,16 @@ signature: |
const char *post_data);
---
Helper function that creates outbound HTTP connection.
Helper function that creates an outbound HTTP connection.
`url` is a URL to fetch. It must be properly URL-encoded, e.g. have
no spaces, etc. By default, `mg_connect_http()` sends Connection and
Host headers. `extra_headers` is an extra HTTP headers to send, e.g.
no spaces, etc. By default, `mg_connect_http()` sends the Connection and
Host headers. `extra_headers` is an extra HTTP header to send, e.g.
`"User-Agent: my-app\r\n"`.
If `post_data` is NULL, then GET request is created. Otherwise, POST request
is created with the specified POST data. Note that if the data being posted
is a form submission, the `Content-Type` header should be set accordingly
(see example below).
If `post_data` is NULL, then a GET request is created. Otherwise, a POST
request is created with the specified POST data. Note that if the data being
posted is a form submission, the `Content-Type` header should be set
accordingly (see example below).
Examples:

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@ -11,8 +11,9 @@ signature: |
const char *post_data);
---
Helper function that creates outbound HTTP connection.
Helper function that creates an outbound HTTP connection.
Mostly identical to mg_connect_http, but allows to provide extra parameters
(for example, SSL parameters
Mostly identical to mg_connect_http, but allows you to provide extra
*parameters
(for example, SSL parameters)

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@ -13,7 +13,7 @@ Helper function that creates an outbound WebSocket connection.
`url` is a URL to connect to. It must be properly URL-encoded, e.g. have
no spaces, etc. By default, `mg_connect_ws()` sends Connection and
Host headers. `extra_headers` is an extra HTTP headers to send, e.g.
Host headers. `extra_headers` is an extra HTTP header to send, e.g.
`"User-Agent: my-app\r\n"`.
If `protocol` is not NULL, then a `Sec-WebSocket-Protocol` header is sent.

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@ -12,6 +12,6 @@ signature: |
Helper function that creates an outbound WebSocket connection
Mostly identical to mg_connect_ws, but allows to provide extra parameters
(for example, SSL parameters
Mostly identical to `mg_connect_ws`, but allows to provide extra parameters
(for example, SSL parameters)

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@ -12,9 +12,10 @@ This handler can be used to implement file uploads with minimum code.
This handler will process MG_EV_HTTP_PART_* events and store file data into
a local file.
`local_name_fn` will be invoked with whatever name was provided by the client
and will expect the name of the local file to open. Return value of NULL will
abort file upload (client will get a "403 Forbidden" response). If non-null,
the returned string must be heap-allocated and will be freed by the caller.
and will expect the name of the local file to open. A return value of NULL
will abort file upload (client will get a "403 Forbidden" response). If
non-null, the returned string must be heap-allocated and will be freed by
the caller.
Exception: it is ok to return the same string verbatim.
Example:

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@ -6,7 +6,7 @@ signature: |
struct mg_str *mg_get_http_header(struct http_message *hm, const char *name);
---
Search and return header `name` in parsed HTTP message `hm`.
Searches and returns the header `name` in parsed HTTP message `hm`.
If header is not found, NULL is returned. Example:
struct mg_str *host_hdr = mg_get_http_header(hm, "Host");

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@ -7,10 +7,10 @@ signature: |
size_t dst_len);
---
Fetch an HTTP form variable.
Fetches a HTTP form variable.
Fetch a variable `name` from a `buf` into a buffer specified by
`dst`, `dst_len`. Destination is always zero-terminated. Return length
of a fetched variable. If not found, 0 is returned. `buf` must be
valid url-encoded buffer. If destination is too small, `-1` is returned.
Fetches a variable `name` from a `buf` into a buffer specified by `dst`,
`dst_len`. The destination is always zero-terminated. Returns the length of
a fetched variable. If not found, 0 is returned. `buf` must be valid
url-encoded buffer. If destination is too small, `-1` is returned.

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@ -7,6 +7,6 @@ signature: |
FILE *fp);
---
Authenticate HTTP request against opened passwords file.
Authenticates a HTTP request against an opened password file.
Returns 1 if authenticated, 0 otherwise.

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@ -9,5 +9,5 @@ signature: |
const char *passwd);
---
Create Digest authentication header for client request.
Creates digest authentication header for a client request.

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@ -7,17 +7,17 @@ signature: |
size_t buf_size);
---
Parse HTTP header `hdr`. Find variable `var_name` and store it's value
in the buffer `buf`, `buf_size`. Return 0 if variable not found, non-zero
Parses the HTTP header `hdr`. Finds variable `var_name` and stores its value
in the buffer `buf`, `buf_size`. Returns 0 if variable not found, non-zero
otherwise.
This function is supposed to parse
cookies, authentication headers, etcetera. Example (error handling omitted):
This function is supposed to parse cookies, authentication headers, etc.
Example (error handling omitted):
char user[20];
struct mg_str *hdr = mg_get_http_header(hm, "Authorization");
mg_http_parse_header(hdr, "username", user, sizeof(user));
Return length of the variable's value. If buffer is not large enough,
Returns the length of the variable's value. If buffer is not large enough,
or variable not found, 0 is returned.

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@ -6,10 +6,10 @@ signature: |
int mg_parse_http(const char *s, int n, struct http_message *hm, int is_req);
---
Parse a HTTP message.
Parses a HTTP message.
`is_req` should be set to 1 if parsing request, 0 if reply.
`is_req` should be set to 1 if parsing a request, 0 if reply.
Return number of bytes parsed. If HTTP message is
incomplete, `0` is returned. On parse error, negative number is returned.
Returns the number of bytes parsed. If HTTP message is
incomplete `0` is returned. On parse error, a negative number is returned.

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@ -9,13 +9,13 @@ signature: |
size_t *chunk_len);
---
Parse buffer `buf`, `buf_len` that contains multipart form data chunks.
Store chunk name in a `var_name`, `var_name_len` buffer.
Parses the buffer `buf`, `buf_len` that contains multipart form data chunks.
Stores the chunk name in a `var_name`, `var_name_len` buffer.
If a chunk is an uploaded file, then `file_name`, `file_name_len` is
filled with an uploaded file name. `chunk`, `chunk_len`
points to the chunk data.
Return: number of bytes to skip to the next chunk, or 0 if there are
Return: number of bytes to skip to the next chunk or 0 if there are
no more chunks.
Usage example:

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@ -6,5 +6,5 @@ signature: |
void mg_printf_html_escape(struct mg_connection *nc, const char *fmt, ...);
---
Send printf-formatted HTTP chunk, escaping HTML tags.
Sends a printf-formatted HTTP chunk, escaping HTML tags.

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@ -6,6 +6,6 @@ signature: |
void mg_printf_http_chunk(struct mg_connection *nc, const char *fmt, ...);
---
Send printf-formatted HTTP chunk.
Sends a printf-formatted HTTP chunk.
Functionality is similar to `mg_send_http_chunk()`.

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@ -7,8 +7,8 @@ signature: |
const char *fmt, ...);
---
Send websocket frame to the remote end.
Sends WebSocket frame to the remote end.
Like `mg_send_websocket_frame()`, but allows to create formatted message
Like `mg_send_websocket_frame()`, but allows to create formatted messages
with `printf()`-like semantics.

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@ -7,8 +7,8 @@ signature: |
mg_event_handler_t handler);
---
Register callback for specified http endpoint
Note: if callback is registered it is called instead of
Registers a callback for a specified http endpoint
Note: if callback is registered it is called instead of the
callback provided in mg_bind
Example code snippet:

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@ -7,15 +7,15 @@ signature: |
int64_t content_length, const char *extra_headers);
---
Send response line and headers.
This function sends response line with the `status_code`, and automatically
sends one header: either "Content-Length", or "Transfer-Encoding".
Sends a response line and headers.
This function sends a response line with the `status_code`, and automatically
sends one header: either "Content-Length" or "Transfer-Encoding".
If `content_length` is negative, then "Transfer-Encoding: chunked" header
is sent, otherwise, "Content-Length" header is sent.
NOTE: If `Transfer-Encoding` is `chunked`, then message body must be sent
using `mg_send_http_chunk()` or `mg_printf_http_chunk()` functions.
Otherwise, `mg_send()` or `mg_printf()` must be used.
Extra headers could be set through `extra_headers` - and note `extra_headers`
Extra headers could be set through `extra_headers`. Note `extra_headers`
must NOT be terminated by a new line.

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@ -6,16 +6,17 @@ signature: |
void mg_send_http_chunk(struct mg_connection *nc, const char *buf, size_t len);
---
Send buffer `buf` of size `len` to the client using chunked HTTP encoding.
This function first sends buffer size as hex number + newline, then
buffer itself, then newline. For example,
`mg_send_http_chunk(nc, "foo", 3)` whill append `3\r\nfoo\r\n` string to
Sends buffer `buf` of size `len` to the client using chunked HTTP encoding.
This function sends the buffer size as hex number + newline first, then
the buffer itself, then the newline. For example,
`mg_send_http_chunk(nc, "foo", 3)` whill append the `3\r\nfoo\r\n` string
*to
the `nc->send_mbuf` output IO buffer.
NOTE: HTTP header "Transfer-Encoding: chunked" should be sent prior to
NOTE: The HTTP header "Transfer-Encoding: chunked" should be sent prior to
using this function.
NOTE: do not forget to send empty chunk at the end of the response,
NOTE: do not forget to send an empty chunk at the end of the response,
to tell the client that everything was sent. Example:
```

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@ -7,7 +7,7 @@ signature: |
const char *extra_headers);
---
Send response status line.
Sends a response status line.
If `extra_headers` is not NULL, then `extra_headers` are also sent
after the reponse line. `extra_headers` must NOT end end with new line.
Example:

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@ -7,9 +7,9 @@ signature: |
const void *data, size_t data_len);
---
Send websocket frame to the remote end.
Send WebSocket frame to the remote end.
`op_and_flags` specifies frame's type, one of:
`op_and_flags` specifies the frame's type. It's one of:
- WEBSOCKET_OP_CONTINUE
- WEBSOCKET_OP_TEXT

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@ -7,7 +7,7 @@ signature: |
const struct mg_str *strings, int num_strings);
---
Send multiple websocket frames.
Sends multiple websocket frames.
Like `mg_send_websocket_frame()`, but composes a frame from multiple buffers.

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@ -7,7 +7,7 @@ signature: |
struct mg_serve_http_opts opts);
---
Serve given HTTP request according to the `options`.
Serves given HTTP request according to the `options`.
Example code snippet:

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@ -6,40 +6,41 @@ signature: |
void mg_set_protocol_http_websocket(struct mg_connection *nc);
---
Attach built-in HTTP event handler to the given connection.
User-defined event handler will receive following extra events:
Attaches a built-in HTTP event handler to the given connection.
The user-defined event handler will receive following extra events:
- MG_EV_HTTP_REQUEST: HTTP request has arrived. Parsed HTTP request
is passed as
`struct http_message` through the handler's `void *ev_data` pointer.
- MG_EV_HTTP_MULTIPART_REQUEST: A multipart POST request has received.
This event is sent before body is parsed. After this user
This event is sent before body is parsed. After this, the user
should expect a sequence of MG_EV_HTTP_PART_BEGIN/DATA/END requests.
This is also the last time when headers and other request fields are
accessible.
- MG_EV_HTTP_REPLY: HTTP reply has arrived. Parsed HTTP reply is passed as
`struct http_message` through the handler's `void *ev_data` pointer.
- MG_EV_HTTP_CHUNK: HTTP chunked-encoding chunk has arrived.
Parsed HTTP reply is passed as `struct http_message` through the
- MG_EV_HTTP_REPLY: The HTTP reply has arrived. The parsed HTTP reply is
passed as `struct http_message` through the handler's `void *ev_data`
pointer.
- MG_EV_HTTP_CHUNK: The HTTP chunked-encoding chunk has arrived.
The parsed HTTP reply is passed as `struct http_message` through the
handler's `void *ev_data` pointer. `http_message::body` would contain
incomplete, reassembled HTTP body.
It will grow with every new chunk arrived, and
potentially can consume a lot of memory. An event handler may process
It will grow with every new chunk that arrives, and it can
potentially consume a lot of memory. An event handler may process
the body as chunks are coming, and signal Mongoose to delete processed
body by setting `MG_F_DELETE_CHUNK` in `mg_connection::flags`. When
the last zero chunk is received,
Mongoose sends `MG_EV_HTTP_REPLY` event with
full reassembled body (if handler did not signal to delete chunks) or
with empty body (if handler did signal to delete chunks).
- MG_EV_WEBSOCKET_HANDSHAKE_REQUEST: server has received websocket handshake
request. `ev_data` contains parsed HTTP request.
- MG_EV_WEBSOCKET_HANDSHAKE_DONE: server has completed Websocket handshake.
`ev_data` is `NULL`.
- MG_EV_WEBSOCKET_FRAME: new websocket frame has arrived. `ev_data` is
- MG_EV_WEBSOCKET_HANDSHAKE_REQUEST: server has received the WebSocket
handshake request. `ev_data` contains parsed HTTP request.
- MG_EV_WEBSOCKET_HANDSHAKE_DONE: server has completed the WebSocket
handshake. `ev_data` is `NULL`.
- MG_EV_WEBSOCKET_FRAME: new WebSocket frame has arrived. `ev_data` is
`struct websocket_message *`
- MG_EV_HTTP_PART_BEGIN: new part of multipart message is started,
extra parameters are passed in mg_http_multipart_part
- MG_EV_HTTP_PART_DATA: new portion of data from multiparted message
- MG_EV_HTTP_PART_DATA: new portion of data from the multiparted message
no additional headers are available, only data and data size
- MG_EV_HTTP_PART_END: final boundary received, analogue to maybe used to
find the end of packet

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@ -7,12 +7,12 @@ signature: |
int is_form_url_encoded);
---
Decode URL-encoded string.
Decodes URL-encoded string.
Source string is specified by (`src`, `src_len`), and destination is
(`dst`, `dst_len`). If `is_form_url_encoded` is non-zero, then
`+` character is decoded as a blank space character. This function
guarantees to `\0`-terminate the destination. If destination is too small,
then source string is partially decoded and `-1` is returned. Otherwise,
then the source string is partially decoded and `-1` is returned. Otherwise,
a length of decoded string is returned, not counting final `\0`.

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@ -6,10 +6,10 @@ signature: |
void mg_mqtt_broker(struct mg_connection *brk, int ev, void *data);
---
Process a MQTT broker message.
Processes a MQTT broker message.
Listening connection expects a pointer to an initialized `mg_mqtt_broker`
structure in the `user_data` field.
The listening connection expects a pointer to an initialised
`mg_mqtt_broker` structure in the `user_data` field.
Basic usage:

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@ -6,5 +6,5 @@ signature: |
void mg_mqtt_broker_init(struct mg_mqtt_broker *brk, void *user_data);
---
Initialize a MQTT broker.
Initialises a MQTT broker.

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@ -6,5 +6,5 @@ signature: |
void mg_mqtt_connack(struct mg_connection *nc, uint8_t return_code);
---
Send a CONNACK command with a given `return_code`.
Sends a CONNACK command with a given `return_code`.

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@ -6,5 +6,5 @@ signature: |
void mg_mqtt_disconnect(struct mg_connection *nc);
---
Send a DISCONNECT command.
Sends a DISCONNECT command.

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@ -7,9 +7,9 @@ signature: |
struct mg_str *topic, uint8_t *qos, int pos);
---
Extract the next topic expression from a SUBSCRIBE command payload.
Extracts the next topic expression from a SUBSCRIBE command payload.
Topic expression name will point to a string in the payload buffer.
Return the pos of the next topic expression or -1 when the list
The topic expression name will point to a string in the payload buffer.
Returns the pos of the next topic expression or -1 when the list
of topics is exhausted.

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@ -6,5 +6,5 @@ signature: |
void mg_mqtt_ping(struct mg_connection *nc);
---
Send a PINGREQ command.
Sends a PINGREQ command.

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@ -6,5 +6,5 @@ signature: |
void mg_mqtt_pong(struct mg_connection *nc);
---
Send a PINGRESP command.
Sends a PINGRESP command.

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@ -6,5 +6,5 @@ signature: |
void mg_mqtt_puback(struct mg_connection *nc, uint16_t message_id);
---
Send a PUBACK command with a given `message_id`.
Sends a PUBACK command with a given `message_id`.

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@ -6,5 +6,5 @@ signature: |
void mg_mqtt_pubcomp(struct mg_connection *nc, uint16_t message_id);
---
Send a PUBCOMP command with a given `message_id`.
Sends a PUBCOMP command with a given `message_id`.

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@ -8,5 +8,5 @@ signature: |
size_t len);
---
Publish a message to a given topic.
Publishes a message to a given topic.

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@ -6,5 +6,5 @@ signature: |
void mg_mqtt_pubrec(struct mg_connection *nc, uint16_t message_id);
---
Send a PUBREC command with a given `message_id`.
Sends a PUBREC command with a given `message_id`.

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@ -6,5 +6,5 @@ signature: |
void mg_mqtt_pubrel(struct mg_connection *nc, uint16_t message_id);
---
Send a PUBREL command with a given `message_id`.
Sends a PUBREL command with a given `message_id`.

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@ -7,6 +7,6 @@ signature: |
uint16_t message_id);
---
Send a SUBACK command with a given `message_id`
Sends a SUBACK command with a given `message_id`
and a sequence of granted QoSs.

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@ -8,5 +8,5 @@ signature: |
size_t topics_len, uint16_t message_id);
---
Subscribe to a bunch of topics.
Subscribes to a bunch of topics.

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@ -6,5 +6,5 @@ signature: |
void mg_mqtt_unsuback(struct mg_connection *nc, uint16_t message_id);
---
Send a UNSUBACK command with a given `message_id`.
Sends a UNSUBACK command with a given `message_id`.

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@ -7,5 +7,5 @@ signature: |
size_t topics_len, uint16_t message_id);
---
Unsubscribe from a bunch of topics.
Unsubscribes from a bunch of topics.

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@ -6,5 +6,5 @@ signature: |
void mg_send_mqtt_handshake(struct mg_connection *nc, const char *client_id);
---
Send MQTT handshake.
Sends an MQTT handshake.

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@ -7,5 +7,5 @@ signature: |
struct mg_send_mqtt_handshake_opts);
---
Send MQTT handshake with optional parameters.
Sends an MQTT handshake with optional parameters.

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@ -6,7 +6,7 @@ signature: |
void mg_set_protocol_mqtt(struct mg_connection *nc);
---
Attach built-in MQTT event handler to the given connection.
Attaches a built-in MQTT event handler to the given connection.
The user-defined event handler will receive following extra events:

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@ -6,8 +6,8 @@ signature: |
struct mg_connection *mg_add_sock(struct mg_mgr *, sock_t, mg_event_handler_t);
---
Create a connection, associate it with the given socket and event handler,
and add it to the manager.
Creates a connection, associates it with the given socket and event handler
and adds it to the manager.
For more options see the `mg_add_sock_opt` variant.

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@ -8,8 +8,8 @@ signature: |
struct mg_add_sock_opts);
---
Create a connection, associate it with the given socket and event handler,
and add to the manager.
Creates a connection, associates it with the given socket and event handler
and adds to the manager.
See the `mg_add_sock_opts` structure for a description of the options.

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@ -7,7 +7,7 @@ signature: |
mg_event_handler_t);
---
Create listening connection.
Creates a listening connection.
See `mg_bind_opt` for full documentation.

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@ -8,19 +8,20 @@ signature: |
struct mg_bind_opts opts);
---
Create listening connection.
Creates a listening connection.
`address` parameter tells which address to bind to. It's format is the same
as for the `mg_connect()` call, where `HOST` part is optional. `address`
can be just a port number, e.g. `:8000`. To bind to a specific interface,
an IP address can be specified, e.g. `1.2.3.4:8000`. By default, a TCP
connection is created. To create UDP connection, prepend `udp://` prefix,
e.g. `udp://:8000`. To summarize, `address` paramer has following format:
`[PROTO://][IP_ADDRESS]:PORT`, where `PROTO` could be `tcp` or `udp`.
The `address` parameter specifies which address to bind to. It's format is
the same as for the `mg_connect()` call, where `HOST` part is optional.
`address` can be just a port number, e.g. `:8000`. To bind to a specific
interface, an IP address can be specified, e.g. `1.2.3.4:8000`. By default,
a TCP connection is created. To create UDP connection, prepend `udp://`
prefix, e.g. `udp://:8000`. To summarize, `address` paramer has following
format: `[PROTO://][IP_ADDRESS]:PORT`, where `PROTO` could be `tcp` or
`udp`.
See the `mg_bind_opts` structure for a description of the optional
parameters.
Return a new listening connection, or `NULL` on error.
NOTE: Connection remains owned by the manager, do not free().
Returns a new listening connection or `NULL` on error.
NOTE: The connection remains owned by the manager, do not free().

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@ -6,14 +6,14 @@ signature: |
void mg_broadcast(struct mg_mgr *, mg_event_handler_t func, void *, size_t);
---
Pass a message of a given length to all connections.
Passes a message of a given length to all connections.
Must be called from a thread that does NOT call `mg_mgr_poll()`.
Note that `mg_broadcast()` is the only function
that can be, and must be, called from a different (non-IO) thread.
`func` callback function will be called by the IO thread for each
connection. When called, event would be `MG_EV_POLL`, and message will
be passed as `ev_data` pointer. Maximum message size is capped
connection. When called, the event will be `MG_EV_POLL`, and a message will
be passed as the `ev_data` pointer. Maximum message size is capped
by `MG_CTL_MSG_MESSAGE_SIZE` which is set to 8192 bytes.

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@ -13,15 +13,15 @@ Verify given IP address against the ACL.
Each subnet is
prepended by either a - or a + sign. A plus sign means allow, where a
minus sign means deny. If a subnet mask is omitted, such as `-1.2.3.4`,
this means to deny only that single IP address.
it means that only that single IP address is denied.
Subnet masks may vary from 0 to 32, inclusive. The default setting
is to allow all accesses. On each request the full list is traversed,
is to allow all access. On each request the full list is traversed,
and the last match wins. Example:
`-0.0.0.0/0,+192.168/16` - deny all acccesses, only allow 192.168/16 subnet
To learn more about subnet masks, see the
link:https://en.wikipedia.org/wiki/Subnetwork[Wikipedia page on Subnetwork]
To learn more about subnet masks, see this
link:https://en.wikipedia.org/wiki/Subnetwork[Wikipedia page on Subnetwork].
Return -1 if ACL is malformed, 0 if address is disallowed, 1 if allowed.
Returns -1 if ACL is malformed, 0 if address is disallowed, 1 if allowed.

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@ -7,7 +7,7 @@ signature: |
mg_event_handler_t handler);
---
Connect to a remote host.
Connects to a remote host.
See `mg_connect_opt()` for full documentation.

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@ -8,11 +8,11 @@ signature: |
struct mg_connect_opts opts);
---
Connect to a remote host.
Connects to a remote host.
`address` format is `[PROTO://]HOST:PORT`. `PROTO` could be `tcp` or `udp`.
`HOST` could be an IP address,
IPv6 address (if Mongoose is compiled with `-DMG_ENABLE_IPV6`), or a host
The `address` format is `[PROTO://]HOST:PORT`. `PROTO` could be `tcp` or
`udp`. `HOST` could be an IP address,
IPv6 address (if Mongoose is compiled with `-DMG_ENABLE_IPV6`) or a host
name. If `HOST` is a name, Mongoose will resolve it asynchronously. Examples
of valid addresses: `google.com:80`, `udp://1.2.3.4:53`, `10.0.0.1:443`,
`[::1]:80`
@ -20,18 +20,18 @@ of valid addresses: `google.com:80`, `udp://1.2.3.4:53`, `10.0.0.1:443`,
See the `mg_connect_opts` structure for a description of the optional
parameters.
Returns a new outbound connection, or `NULL` on error.
Returns a new outbound connection or `NULL` on error.
NOTE: Connection remains owned by the manager, do not free().
NOTE: The connection remains owned by the manager, do not free().
NOTE: To enable IPv6 addresses, `-DMG_ENABLE_IPV6` should be specified
NOTE: To enable IPv6 addresses `-DMG_ENABLE_IPV6` should be specified
in the compilation flags.
NOTE: New connection will receive `MG_EV_CONNECT` as it's first event
which will report connect success status.
If asynchronous resolution fail, or `connect()` syscall fail for whatever
reason (e.g. with `ECONNREFUSED` or `ENETUNREACH`), then `MG_EV_CONNECT`
event report failure. Code example below:
NOTE: The new connection will receive `MG_EV_CONNECT` as its first event
which will report the connect success status.
If the asynchronous resolution fails or the `connect()` syscall fails for
whatever reason (e.g. with `ECONNREFUSED` or `ENETUNREACH`), then
`MG_EV_CONNECT` event will report failure. Code example below:
```c
static void ev_handler(struct mg_connection *nc, int ev, void *ev_data) {

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@ -7,8 +7,8 @@ signature: |
const char *init_js_file_name);
---
Enable server-side JavaScript scripting.
Requires `-DMG_ENABLE_JAVASCRIPT` compilation flag, and V7 engine sources.
v7 instance must not be destroyed during manager's lifetime.
Return V7 error.
Enables server-side JavaScript scripting.
Requires a `-DMG_ENABLE_JAVASCRIPT` compilation flag and V7 engine sources.
V7 instance must not be destroyed during manager's lifetime.
Returns a V7 error.

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@ -6,9 +6,9 @@ signature: |
void mg_enable_multithreading(struct mg_connection *nc);
---
Enable multi-threaded handling for the given listening connection `nc`.
Enables multi-threaded handling for the given listening connection `nc`.
For each accepted connection, Mongoose will create a separate thread
and run event handler in that thread. Thus, if an event hanler is doing
a blocking call or some long computation, that will not slow down
and run an event handler in that thread. Thus, if an event handler is doing
a blocking call or some long computation, it will not slow down
other connections.

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@ -7,5 +7,5 @@ signature: |
---
Callback function (event handler) prototype. Must be defined by the user.
Mongoose calls the event handler, passing events defined below.
Mongoose calls the event handler, passing the events defined below.

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@ -6,7 +6,7 @@ signature: |
void mg_mgr_free(struct mg_mgr *);
---
De-initializes Mongoose manager.
De-initialises Mongoose manager.
Close and deallocate all active connections.
Closes and deallocates all active connections.

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@ -6,10 +6,10 @@ signature: |
void mg_mgr_init(struct mg_mgr *mgr, void *user_data);
---
Initialize Mongoose manager. Side effect: ignores SIGPIPE signal.
`mgr->user_data` field will be initialized with `user_data` parameter.
That is an arbitrary pointer, where user code can associate some data
Initialise Mongoose manager. Side effect: ignores SIGPIPE signal.
`mgr->user_data` field will be initialised with a `user_data` parameter.
That is an arbitrary pointer, where the user code can associate some data
with the particular Mongoose manager. For example, a C++ wrapper class
could be written, in which case `user_data` can hold a pointer to the
could be written in which case `user_data` can hold a pointer to the
class instance.

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@ -6,10 +6,10 @@ signature: |
time_t mg_mgr_poll(struct mg_mgr *, int milli);
---
This function performs the actual IO, and must be called in a loop
(an event loop). Returns the current timestamp.
This function performs the actual IO and must be called in a loop
(an event loop). It returns the current timestamp.
`milli` is the maximum number of milliseconds to sleep.
`mg_mgr_poll()` checks all connection for IO readiness. If at least one
of the connections is IO-ready, `mg_mgr_poll()` triggers respective
`mg_mgr_poll()` checks all connections for IO readiness. If at least one
of the connections is IO-ready, `mg_mgr_poll()` triggers the respective
event handlers and returns.

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@ -6,10 +6,10 @@ signature: |
struct mg_connection *mg_next(struct mg_mgr *, struct mg_connection *);
---
Iterate over all active connections.
Iterates over all active connections.
Returns next connection from the list
of active connections, or `NULL` if there is no more connections. Below
Returns the next connection from the list
of active connections or `NULL` if there are no more connections. Below
is the iteration idiom:
```c

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@ -6,7 +6,7 @@ signature: |
int mg_printf(struct mg_connection *, const char *fmt, ...);
---
Send `printf`-style formatted data to the connection.
Sends `printf`-style formatted data to the connection.
See `mg_send` for more details on send semantics.

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@ -6,7 +6,7 @@ signature: |
void mg_send(struct mg_connection *, const void *buf, int len);
---
Send data to the connection.
Sends data to the connection.
Note that sending functions do not actually push data to the socket.
They just append data to the output buffer. MG_EV_SEND will be delivered when

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@ -7,15 +7,16 @@ signature: |
const char *ca_cert);
---
Note: This function is deprecated, please use SSL options in mg_connect_opt.
Note: This function is deprecated. Please, use SSL options in
mg_connect_opt.
Enable SSL for a given connection.
`cert` is a server certificate file name for a listening connection,
Enables SSL for a given connection.
`cert` is a server certificate file name for a listening connection
or a client certificate file name for an outgoing connection.
Certificate files must be in PEM format. Server certificate file
The certificate files must be in PEM format. The server certificate file
must contain a certificate, concatenated with a private key, optionally
concatenated with DH parameters.
`ca_cert` is a CA certificate, or NULL if peer verification is not
`ca_cert` is a CA certificate or NULL if peer verification is not
required.
Return: NULL on success, or error message on error.
Return: NULL on success or error message on error.

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@ -6,12 +6,12 @@ signature: |
double mg_set_timer(struct mg_connection *c, double timestamp);
---
Schedule MG_EV_TIMER event to be delivered at `timestamp` time.
`timestamp` is a UNIX time (a number of seconds since Epoch). It is
Schedules an MG_EV_TIMER event to be delivered at `timestamp` time.
`timestamp` is UNIX time (the number of seconds since Epoch). It is
`double` instead of `time_t` to allow for sub-second precision.
Return the old timer value.
Returns the old timer value.
Example: set connect timeout to 1.5 seconds:
Example: set the connect timeout to 1.5 seconds:
```
c = mg_connect(&mgr, "cesanta.com", ev_handler);

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@ -6,7 +6,7 @@ signature: |
int mg_socketpair(sock_t[2], int sock_type);
---
Create a socket pair.
Creates a socket pair.
`sock_type` can be either `SOCK_STREAM` or `SOCK_DGRAM`.
Return 0 on failure, 1 on success.
Returns 0 on failure and 1 on success.

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@ -6,9 +6,9 @@ signature: |
int mg_avprintf(char **buf, size_t size, const char *fmt, va_list ap);
---
Print message to buffer. If buffer is large enough to hold the message,
return buffer. If buffer is to small, allocate large enough buffer on heap,
and return allocated buffer.
Prints message to the buffer. If the buffer is large enough to hold the
message, it returns buffer. If buffer is to small, it allocates a large
enough buffer on heap and returns allocated buffer.
This is a supposed use case:
char buf[5], *p = buf;

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@ -6,11 +6,12 @@ signature: |
int mg_base64_decode(const unsigned char *s, int len, char *dst);
---
Decode base64-encoded string `s`, `len` into the destination `dst`.
Destination has to have enough space to hold decoded buffer.
Decoding stops either when all string has been decoded, or invalid
Decodes base64-encoded string `s`, `len` into the destination `dst`.
The destination has to have enough space to hold the decoded buffer.
Decoding stops either when all strings have been decoded or invalid an
character appeared.
Destination is '\0'-terminated.
Return number of decoded characters. On success, that should be equal to
`len`. On error (invalid character) the return value is smaller then `len`.
Returns the number of decoded characters. On success, that should be equal
to `len`. On error (invalid character) the return value is smaller then
`len`.

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@ -7,9 +7,9 @@ signature: |
int flags);
---
Convert connection's local or remote address into string.
Converts a connection's local or remote address into string.
The `flags` parameter is a bit mask that controls the behavior,
The `flags` parameter is a bit mask that controls the behaviour,
see `MG_SOCK_STRINGIFY_*` definitions.
- MG_SOCK_STRINGIFY_IP - print IP address

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@ -6,7 +6,7 @@ signature: |
FILE *mg_fopen(const char *path, const char *mode);
---
Open the given file and return a file stream.
Opens the given file and returns a file stream.
`path` and `mode` should be UTF8 encoded.

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@ -6,10 +6,10 @@ signature: |
int mg_hexdump(const void *buf, int len, char *dst, int dst_len);
---
Generates human-readable hexdump of memory chunk.
Generates a human-readable hexdump of memory chunk.
Takes a memory buffer `buf` of length `len` and creates a hex dump of that
buffer in `dst`. Generated output is a-la hexdump(1).
Return length of generated string, excluding terminating `\0`. If returned
length is bigger than `dst_len`, overflow bytes are discarded.
buffer in `dst`. The generated output is a-la hexdump(1).
Returns the length of generated string, excluding terminating `\0`. If
returned length is bigger than `dst_len`, the overflow bytes are discarded.

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@ -7,9 +7,9 @@ signature: |
const void *buf, int num_bytes, int ev);
---
Generates human-readable hexdump of the data sent or received by connection.
`path` is a file name where hexdump should be written. `num_bytes` is
a number of bytes sent/received. `ev` is one of the `MG_*` events sent to
an event handler. This function is supposed to be called from the
event handler.
Generates human-readable hexdump of the data sent or received by the
connection. `path` is a file name where hexdump should be written.
`num_bytes` is a number of bytes sent/received. `ev` is one of the `MG_*`
events sent to an event handler. This function is supposed to be called from
the event handler.

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@ -6,5 +6,5 @@ signature: |
int mg_is_big_endian(void);
---
Return true if target platform is big endian.
Returns true if target platform is big endian.

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@ -6,7 +6,9 @@ signature: |
int mg_match_prefix(const char *pattern, int pattern_len, const char *str);
---
Match 0-terminated string (mg_match_prefix) or string with given length
Matches 0-terminated string (mg_match_prefix) or string with given length
mg_match_prefix_n against a glob pattern.
Match is case-insensitive. Return number of bytes matched, or -1 if no match.
Match is case-insensitive. Returns number of bytes matched, or -1 if no
match.

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@ -8,12 +8,12 @@ signature: |
---
A helper function for traversing a comma separated list of values.
It returns a list pointer shifted to the next value, or NULL if the end
It returns a list pointer shifted to the next value or NULL if the end
of the list found.
Value is stored in val vector. If value has form "x=y", then eq_val
vector is initialized to point to the "y" part, and val vector length
The value is stored in a val vector. If the value has a form "x=y", then
eq_val vector is initialised to point to the "y" part, and val vector length
is adjusted to point only to "x".
If list is just a comma separated list of entries, like "aa,bb,cc" then
If the list is just a comma separated list of entries, like "aa,bb,cc" then
`eq_val` will contain zero-length string.
The purpose of this function is to parse comma separated string without

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@ -6,7 +6,7 @@ signature: |
int mg_open(const char *path, int flag, int mode);
---
Open the given file and return a file stream.
Opens the given file and returns a file stream.
`path` should be UTF8 encoded.

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@ -7,11 +7,11 @@ signature: |
const char *delimiters, struct mg_str *v);
---
Fetch substring from input string `s`, `end` into `v`.
Fetches substring from input string `s`, `end` into `v`.
Skips initial delimiter characters. Records first non-delimiter character
as the beginning of substring `v`. Then scans the rest of the string
at the beginning of substring `v`. Then scans the rest of the string
until a delimiter character or end-of-string is found.
`delimiters` is a 0-terminated string containing delimiter characters.
Either one of `delimiters` or `end_string` terminates the search.
Return an `s` pointer, advanced forward where parsing stopped.
Returns an `s` pointer, advanced forward where parsing has stopped.

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@ -7,7 +7,7 @@ signature: |
int flags);
---
Convert socket's address into string.
Convert the socket's address into string.
`flags` is MG_SOCK_STRINGIFY_IP and/or MG_SOCK_STRINGIFY_PORT.

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@ -6,8 +6,8 @@ signature: |
void *mg_start_thread(void *(*thread_func);
---
Start a new detached thread.
Arguments and semantic is the same as pthead's `pthread_create()`.
Starts a new detached thread.
Arguments and semantics are the same as pthead's `pthread_create()`.
`thread_func` is a thread function, `thread_func_param` is a parameter
that is passed to the thread function.

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@ -6,7 +6,7 @@ signature: |
int mg_stat(const char *path, cs_stat_t *st);
---
Perform a 64-bit `stat()` call against given file.
Performs a 64-bit `stat()` call against a given file.
`path` should be UTF8 encoded.

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