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// 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 report_message(const char *msg)
{
(void)report_error("%s", msg);
}
void set_error_cb(void(*cb)(void)) {
error_cb = cb;
}
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