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/*
* Copyright (C) the libgit2 contributors. All rights reserved.
*
* This file is part of libgit2, distributed under the GNU GPL v2 with
* a Linking Exception. For full terms see the included COPYING file.
*/
#ifndef INCLUDE_errors_h__
#define INCLUDE_errors_h__
#include "git2_util.h"
#include "git2/sys/errors.h"
/* Initialize the error thread-state. */
int git_error_global_init(void);
/*
* `vprintf`-style formatting for the error message for this thread.
*/
void git_error_vset(int error_class, const char *fmt, va_list ap);
/**
* Determines whether an error exists.
*/
bool git_error_exists(void);
/**
* Set error message for user callback if needed.
*
* If the error code in non-zero and no error message is set, this
* sets a generic error message.
*
* @return This always returns the `error_code` parameter.
*/
GIT_INLINE(int) git_error_set_after_callback_function(
int error_code, const char *action)
{
if (error_code) {
if (!git_error_exists())
git_error_set(GIT_ERROR_CALLBACK,
"%s callback returned %d", action, error_code);
}
return error_code;
}
#ifdef GIT_WIN32
#define git_error_set_after_callback(code) \
git_error_set_after_callback_function((code), __FUNCTION__)
#else
#define git_error_set_after_callback(code) \
git_error_set_after_callback_function((code), __func__)
#endif
/**
* Gets the system error code for this thread.
*/
int git_error_system_last(void);
/**
* Sets the system error code for this thread.
*/
void git_error_system_set(int code);
/**
* Capture current error state to restore later, returning error code.
* If `error_code` is zero, this does not clear the current error state.
* You must either restore this error state, or free it.
*
* This function returns 0 on success, or -1 on failure. If the function
* fails, the `out` structure is set to the failure error message and
* the normal system error message is not updated.
*/
extern int git_error_save(git_error **out);
/**
* Restore thread error state to the given value. The given value is
* freed and `git_error_free` need not be called on it.
*/
extern int git_error_restore(git_error *error);
/** Free an error state. */
extern void git_error_free(git_error *error);
#endif
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