void gpr_log(const char *file, int line, gpr_log_severity severity,
const char *format, ...) {
char *message = NULL;
va_list args;
int ret;
/* Determine the length. */
va_start(args, format);
ret = _vscprintf(format, args);
va_end(args);
if (ret < 0) {
message = NULL;
} else {
/* Allocate a new buffer, with space for the NUL terminator. */
size_t strp_buflen = (size_t)ret + 1;
message = gpr_malloc(strp_buflen);
/* Print to the buffer. */
va_start(args, format);
ret = vsnprintf_s(message, strp_buflen, _TRUNCATE, format, args);
va_end(args);
if ((size_t)ret != strp_buflen - 1) {
/* This should never happen. */
gpr_free(message);
message = NULL;
}
}
gpr_log_message(file, line, severity, message);
gpr_free(message);
}
void gpr_log(const char *file, int line, gpr_log_severity severity,
const char *format, ...) {
char *message = NULL;
va_list args;
va_start(args, format);
vasprintf(&message, format, args);
va_end(args);
gpr_log_message(file, line, severity, message);
free(message);
}
int main(int argc, char **argv) {
grpc_test_init(argc, argv);
/* test logging at various verbosity levels */
gpr_log(GPR_DEBUG, "%s", "hello world");
gpr_log(GPR_INFO, "%s", "hello world");
gpr_log(GPR_ERROR, "%s", "hello world");
/* should succeed */
GPR_ASSERT(1);
gpr_set_log_function(test_callback);
gpr_log_message(GPR_INFO, "hello 1 2 3");
gpr_log(GPR_INFO, "hello %d %d %d", 1, 2, 3);
/* TODO(ctiller): should we add a GPR_ASSERT failure test here */
return 0;
}
void gpr_log(const char *file, int line, gpr_log_severity severity,
const char *format, ...) {
char *message = NULL;
va_list args;
va_start(args, format);
if (vasprintf(&message, format, args) == -1) {
va_end(args);
return;
}
va_end(args);
gpr_log_message(file, line, severity, message);
/* message has been allocated by vasprintf above, and needs free */
free(message);
}
void gpr_log(const char *file, int line, gpr_log_severity severity,
const char *format, ...) {
char buf[64];
char *allocated = NULL;
char *message = NULL;
int ret;
va_list args;
va_start(args, format);
ret = vsnprintf(buf, sizeof(buf), format, args);
va_end(args);
if (ret < 0) {
message = NULL;
} else if ((size_t)ret <= sizeof(buf) - 1) {
message = buf;
} else {
message = allocated = gpr_malloc((size_t)ret + 1);
va_start(args, format);
vsnprintf(message, (size_t)(ret + 1), format, args);
va_end(args);
}
gpr_log_message(file, line, severity, message);
gpr_free(allocated);
}
