mongoose/src/fmt.h

#pragma once

#include "arch.h"
#include "iobuf.h"

typedef void (*mg_pfn_t)(char, void *);                  // Output function
typedef size_t (*mg_pm_t)(mg_pfn_t, void *, va_list *);  // %M printer

// The lowest level
size_t mg_vxprintf(void (*)(char, void *), void *, const char *fmt, va_list *);
size_t mg_xprintf(void (*fn)(char, void *), void *, const char *fmt, ...);

// Convenience wrappers around mg_xprintf
size_t mg_vsnprintf(char *buf, size_t len, const char *fmt, va_list *ap);
size_t mg_snprintf(char *, size_t, const char *fmt, ...);
char *mg_vmprintf(const char *fmt, va_list *ap);
char *mg_mprintf(const char *fmt, ...);

// %M print helper functions
size_t mg_print_ip(void (*out)(char, void *), void *arg, va_list *ap);
size_t mg_print_ip_port(void (*out)(char, void *), void *arg, va_list *ap);
size_t mg_print_ip4(void (*out)(char, void *), void *arg, va_list *ap);
size_t mg_print_ip6(void (*out)(char, void *), void *arg, va_list *ap);
size_t mg_print_mac(void (*out)(char, void *), void *arg, va_list *ap);

// Various output functions
void mg_pfn_iobuf(char ch, void *param);  // param: struct mg_iobuf *
void mg_pfn_stdout(char c, void *param);  // param: ignored