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#include "log.h"
#include "list.h"
#include <assert.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
static struct list *g_log_clients = NULL;
static char g_log_buffer[16384];
struct log_client {
imv_log_callback callback;
void *data;
};
void imv_log(enum imv_log_level level, const char *fmt, ...)
{
assert(fmt);
/* Exit early if no one's listening */
if (!g_log_clients || !g_log_clients->len) {
return;
}
va_list args;
va_start(args, fmt);
vsnprintf(g_log_buffer, sizeof g_log_buffer, fmt, args);
va_end(args);
for (size_t i = 0; i < g_log_clients->len; ++i) {
struct log_client *client = g_log_clients->items[i];
client->callback(level, g_log_buffer, client->data);
}
}
void imv_log_add_log_callback(imv_log_callback callback, void *data)
{
assert(callback);
struct log_client *client = calloc(1, sizeof *client);
client->callback = callback;
client->data = data;
if (!g_log_clients) {
g_log_clients = list_create();
}
list_append(g_log_clients, client);
}
void imv_log_remove_log_callback(imv_log_callback callback)
{
assert(callback);
if (!callback || !g_log_clients) {
return;
}
for (size_t i = 0; i < g_log_clients->len; ++i) {
struct log_client *client = g_log_clients->items[i];
if (client->callback == callback) {
free(client);
list_remove(g_log_clients, i);
return;
}
}
}
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