| /* |
| * 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_common_h__ |
| #define INCLUDE_common_h__ |
| |
| #include "git2/common.h" |
| #include "cc-compat.h" |
| |
| /** Declare a function as always inlined. */ |
| #if defined(_MSC_VER) |
| # define GIT_INLINE(type) static __inline type |
| #else |
| # define GIT_INLINE(type) static inline type |
| #endif |
| |
| #include <assert.h> |
| #include <errno.h> |
| #include <limits.h> |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <string.h> |
| |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| |
| #ifdef GIT_WIN32 |
| |
| # include <io.h> |
| # include <direct.h> |
| # include <winsock2.h> |
| # include <windows.h> |
| # include "win32/msvc-compat.h" |
| # include "win32/mingw-compat.h" |
| # include "win32/error.h" |
| # include "win32/version.h" |
| # ifdef GIT_THREADS |
| # include "win32/pthread.h" |
| # endif |
| |
| #else |
| |
| # include <unistd.h> |
| # include <strings.h> |
| # ifdef GIT_THREADS |
| # include <pthread.h> |
| # include <sched.h> |
| # endif |
| #define GIT_STDLIB_CALL |
| |
| # include <arpa/inet.h> |
| |
| #endif |
| |
| #include "git2/types.h" |
| #include "git2/errors.h" |
| #include "thread-utils.h" |
| #include "bswap.h" |
| |
| #include <regex.h> |
| |
| /** |
| * Check a pointer allocation result, returning -1 if it failed. |
| */ |
| #define GITERR_CHECK_ALLOC(ptr) if (ptr == NULL) { return -1; } |
| |
| /** |
| * Check a return value and propogate result if non-zero. |
| */ |
| #define GITERR_CHECK_ERROR(code) \ |
| do { int _err = (code); if (_err) return _err; } while (0) |
| |
| /** |
| * Set the error message for this thread, formatting as needed. |
| */ |
| void giterr_set(int error_class, const char *string, ...); |
| |
| /** |
| * Set the error message for a regex failure, using the internal regex |
| * error code lookup and return a libgit error code. |
| */ |
| int giterr_set_regex(const regex_t *regex, int error_code); |
| |
| /** |
| * 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) giterr_set_after_callback_function( |
| int error_code, const char *action) |
| { |
| if (error_code) { |
| const git_error *e = giterr_last(); |
| if (!e || !e->message) |
| giterr_set(e ? e->klass : GITERR_CALLBACK, |
| "%s callback returned %d", action, error_code); |
| } |
| return error_code; |
| } |
| |
| #ifdef GIT_WIN32 |
| #define giterr_set_after_callback(code) \ |
| giterr_set_after_callback_function((code), __FUNCTION__) |
| #else |
| #define giterr_set_after_callback(code) \ |
| giterr_set_after_callback_function((code), __func__) |
| #endif |
| |
| /** |
| * Gets the system error code for this thread. |
| */ |
| int giterr_system_last(void); |
| |
| /** |
| * Sets the system error code for this thread. |
| */ |
| void giterr_system_set(int code); |
| |
| /** |
| * Structure to preserve libgit2 error state |
| */ |
| typedef struct { |
| int error_code; |
| git_error error_msg; |
| } git_error_state; |
| |
| /** |
| * Capture current error state to restore later, returning error code. |
| * If `error_code` is zero, this does nothing and returns zero. |
| */ |
| int giterr_capture(git_error_state *state, int error_code); |
| |
| /** |
| * Restore error state to a previous value, returning saved error code. |
| */ |
| int giterr_restore(git_error_state *state); |
| |
| /** |
| * Check a versioned structure for validity |
| */ |
| GIT_INLINE(int) giterr__check_version(const void *structure, unsigned int expected_max, const char *name) |
| { |
| unsigned int actual; |
| |
| if (!structure) |
| return 0; |
| |
| actual = *(const unsigned int*)structure; |
| if (actual > 0 && actual <= expected_max) |
| return 0; |
| |
| giterr_set(GITERR_INVALID, "Invalid version %d on %s", actual, name); |
| return -1; |
| } |
| #define GITERR_CHECK_VERSION(S,V,N) if (giterr__check_version(S,V,N) < 0) return -1 |
| |
| /** |
| * Initialize a structure with a version. |
| */ |
| GIT_INLINE(void) git__init_structure(void *structure, size_t len, unsigned int version) |
| { |
| memset(structure, 0, len); |
| *((int*)structure) = version; |
| } |
| #define GIT_INIT_STRUCTURE(S,V) git__init_structure(S, sizeof(*S), V) |
| |
| #define GIT_INIT_STRUCTURE_FROM_TEMPLATE(PTR,VERSION,TYPE,TPL) do { \ |
| TYPE _tmpl = TPL; \ |
| GITERR_CHECK_VERSION(&(VERSION), _tmpl.version, #TYPE); \ |
| memcpy((PTR), &_tmpl, sizeof(_tmpl)); } while (0) |
| |
| /* NOTE: other giterr functions are in the public errors.h header file */ |
| |
| #include "util.h" |
| |
| #endif /* INCLUDE_common_h__ */ |