mongoose/src/util.h
2022-02-10 11:56:55 +00:00

56 lines
1.5 KiB
C

#pragma once
#include "arch.h"
#include "config.h"
#include "str.h"
void mg_random(void *buf, size_t len);
uint16_t mg_ntohs(uint16_t net);
uint32_t mg_ntohl(uint32_t net);
uint32_t mg_crc32(uint32_t crc, const char *buf, size_t len);
int64_t mg_millis(void);
#define mg_htons(x) mg_ntohs(x)
#define mg_htonl(x) mg_ntohl(x)
#ifndef EXTERN_C
#ifdef __cplusplus
#define EXTERN_C extern "C"
#else
#define EXTERN_C
#endif
#endif
// Expands to a string representation of its argument: e.g.
// MG_STRINGIFY_LITERAL(5) expands to "5"
#if !defined(_MSC_VER) || _MSC_VER >= 1900
#define MG_STRINGIFY_LITERAL(...) #__VA_ARGS__
#else
#define MG_STRINGIFY_LITERAL(x) #x
#endif
// Expands to a string representation of its argument, which can be a macro:
// #define FOO 123
// MG_STRINGIFY_MACRO(FOO) // Expands to 123
#define MG_STRINGIFY_MACRO(x) MG_STRINGIFY_LITERAL(x)
// Linked list management macros
#define LIST_ADD_HEAD(type_, head_, elem_) \
do { \
(elem_)->next = (*head_); \
*(head_) = (elem_); \
} while (0)
#define LIST_ADD_TAIL(type_, head_, elem_) \
do { \
type_ **h = head_; \
while (*h != NULL) h = &(*h)->next; \
*h = (elem_); \
} while (0)
#define LIST_DELETE(type_, head_, elem_) \
do { \
type_ **h = head_; \
while (*h != (elem_)) h = &(*h)->next; \
*h = (elem_)->next; \
} while (0)