mirror of
https://github.com/subsurface/subsurface.git
synced 2024-12-11 03:21:29 +00:00
50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
#ifdef __clang__
|
|
// Clang has a bug on zero-initialization of C structs.
|
|
#pragma clang diagnostic ignored "-Wmissing-field-initializers"
|
|
#endif
|
|
#include "dive.h"
|
|
#include "membuffer.h"
|
|
|
|
#define VA_BUF(b, fmt) do { va_list args; va_start(args, fmt); put_vformat(b, fmt, args); va_end(args); } while (0)
|
|
|
|
static struct membuffer error_string_buffer = { 0 };
|
|
static void (*error_cb)(void) = NULL;
|
|
/*
|
|
* Note that the act of "getting" the error string
|
|
* buffer doesn't de-allocate the buffer, but it does
|
|
* set the buffer length to zero, so that any future
|
|
* error reports will overwrite the string rather than
|
|
* append to it.
|
|
*/
|
|
const char *get_error_string(void)
|
|
{
|
|
const char *str;
|
|
|
|
if (!error_string_buffer.len)
|
|
return "";
|
|
str = mb_cstring(&error_string_buffer);
|
|
error_string_buffer.len = 0;
|
|
return str;
|
|
}
|
|
|
|
int report_error(const char *fmt, ...)
|
|
{
|
|
struct membuffer *buf = &error_string_buffer;
|
|
|
|
/* Previous unprinted errors? Add a newline in between */
|
|
if (buf->len)
|
|
put_bytes(buf, "\n", 1);
|
|
VA_BUF(buf, fmt);
|
|
mb_cstring(buf);
|
|
|
|
/* if an error callback is registered, call it */
|
|
if (error_cb)
|
|
error_cb();
|
|
|
|
return -1;
|
|
}
|
|
|
|
void set_error_cb(void(*cb)(void)) {
|
|
error_cb = cb;
|
|
}
|