mirror of
https://git.proxmox.com/git/libgit2
synced 2025-05-06 21:44:58 +00:00
169 lines
3.8 KiB
C
169 lines
3.8 KiB
C
/*
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* Copyright (C) the libgit2 contributors. All rights reserved.
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*
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* This file is part of libgit2, distributed under the GNU GPL v2 with
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* a Linking Exception. For full terms see the included COPYING file.
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*/
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#ifndef INCLUDE_common_h__
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#define INCLUDE_common_h__
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#include "git2/common.h"
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#include "cc-compat.h"
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#include <assert.h>
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#include <errno.h>
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#include <limits.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#ifdef GIT_WIN32
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# include <io.h>
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# include <direct.h>
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# include <winsock2.h>
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# include <windows.h>
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# include "win32/msvc-compat.h"
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# include "win32/mingw-compat.h"
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# include "win32/error.h"
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# include "win32/version.h"
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# ifdef GIT_THREADS
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# include "win32/pthread.h"
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# endif
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#else
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# include <unistd.h>
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# ifdef GIT_THREADS
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# include <pthread.h>
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# endif
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#define GIT_STDLIB_CALL
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# include <arpa/inet.h>
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#endif
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#include "git2/types.h"
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#include "git2/errors.h"
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#include "thread-utils.h"
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#include "bswap.h"
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#include <regex.h>
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/**
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* Check a pointer allocation result, returning -1 if it failed.
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*/
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#define GITERR_CHECK_ALLOC(ptr) if (ptr == NULL) { return -1; }
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/**
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* Check a return value and propogate result if non-zero.
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*/
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#define GITERR_CHECK_ERROR(code) \
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do { int _err = (code); if (_err) return _err; } while (0)
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/**
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* Set the error message for this thread, formatting as needed.
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*/
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void giterr_set(int error_class, const char *string, ...);
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/**
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* Set the error message for a regex failure, using the internal regex
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* error code lookup and return a libgit error code.
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*/
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int giterr_set_regex(const regex_t *regex, int error_code);
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/**
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* Set error message for user callback if needed.
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*
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* If the error code in non-zero and no error message is set, this
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* sets a generic error message.
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*
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* @return This always returns the `error_code` parameter.
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*/
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GIT_INLINE(int) giterr_set_after_callback_function(
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int error_code, const char *action)
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{
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if (error_code) {
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const git_error *e = giterr_last();
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if (!e || !e->message)
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giterr_set(e ? e->klass : GITERR_CALLBACK,
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"%s callback returned %d", action, error_code);
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}
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return error_code;
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}
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#ifdef GIT_WIN32
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#define giterr_set_after_callback(code) \
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giterr_set_after_callback_function((code), __FUNCTION__)
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#else
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#define giterr_set_after_callback(code) \
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giterr_set_after_callback_function((code), __func__)
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#endif
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/**
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* Gets the system error code for this thread.
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*/
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int giterr_system_last(void);
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/**
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* Sets the system error code for this thread.
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*/
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void giterr_system_set(int code);
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/**
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* Structure to preserve libgit2 error state
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*/
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typedef struct {
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int error_code;
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git_error error_msg;
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} git_error_state;
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/**
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* Capture current error state to restore later, returning error code.
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* If `error_code` is zero, this does nothing and returns zero.
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*/
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int giterr_capture(git_error_state *state, int error_code);
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/**
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* Restore error state to a previous value, returning saved error code.
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*/
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int giterr_restore(git_error_state *state);
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/**
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* Check a versioned structure for validity
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*/
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GIT_INLINE(int) giterr__check_version(const void *structure, unsigned int expected_max, const char *name)
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{
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unsigned int actual;
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if (!structure)
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return 0;
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actual = *(const unsigned int*)structure;
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if (actual > 0 && actual <= expected_max)
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return 0;
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giterr_set(GITERR_INVALID, "Invalid version %d on %s", actual, name);
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return -1;
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}
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#define GITERR_CHECK_VERSION(S,V,N) if (giterr__check_version(S,V,N) < 0) return -1
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/**
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* Initialize a structure with a version.
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*/
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GIT_INLINE(void) git__init_structure(void *structure, size_t len, unsigned int version)
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{
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memset(structure, 0, len);
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*((int*)structure) = version;
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}
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#define GIT_INIT_STRUCTURE(S,V) git__init_structure(S, sizeof(*S), V)
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/* NOTE: other giterr functions are in the public errors.h header file */
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#include "util.h"
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#endif /* INCLUDE_common_h__ */
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