diff options
Diffstat (limited to 'git-compat-util.h')
| -rw-r--r-- | git-compat-util.h | 51 |
1 files changed, 47 insertions, 4 deletions
diff --git a/git-compat-util.h b/git-compat-util.h index 33636827d5..fdb24fcd2f 100644 --- a/git-compat-util.h +++ b/git-compat-util.h @@ -23,6 +23,9 @@ #include <crtdbg.h> #endif +struct strbuf; + + #define _FILE_OFFSET_BITS 64 @@ -236,6 +239,12 @@ #include <sys/sysctl.h> #endif +/* Used by compat/win32/path-utils.h, and more */ +static inline int is_xplatform_dir_sep(int c) +{ + return c == '/' || c == '\\'; +} + #if defined(__CYGWIN__) #include "compat/win32/path-utils.h" #endif @@ -416,11 +425,11 @@ static inline int git_skip_dos_drive_prefix(char **path) #define skip_dos_drive_prefix git_skip_dos_drive_prefix #endif -#ifndef is_dir_sep static inline int git_is_dir_sep(int c) { return c == '/'; } +#ifndef is_dir_sep #define is_dir_sep git_is_dir_sep #endif @@ -481,7 +490,7 @@ static inline void extract_id_from_env(const char *env, uid_t *id) } } -static inline int is_path_owned_by_current_uid(const char *path) +static inline int is_path_owned_by_current_uid(const char *path, struct strbuf *report) { struct stat st; uid_t euid; @@ -997,6 +1006,28 @@ static inline int cast_size_t_to_int(size_t a) return (int)a; } +/* + * Limit size of IO chunks, because huge chunks only cause pain. OS X + * 64-bit is buggy, returning EINVAL if len >= INT_MAX; and even in + * the absence of bugs, large chunks can result in bad latencies when + * you decide to kill the process. + * + * We pick 8 MiB as our default, but if the platform defines SSIZE_MAX + * that is smaller than that, clip it to SSIZE_MAX, as a call to + * read(2) or write(2) larger than that is allowed to fail. As the last + * resort, we allow a port to pass via CFLAGS e.g. "-DMAX_IO_SIZE=value" + * to override this, if the definition of SSIZE_MAX given by the platform + * is broken. + */ +#ifndef MAX_IO_SIZE +# define MAX_IO_SIZE_DEFAULT (8*1024*1024) +# if defined(SSIZE_MAX) && (SSIZE_MAX < MAX_IO_SIZE_DEFAULT) +# define MAX_IO_SIZE SSIZE_MAX +# else +# define MAX_IO_SIZE MAX_IO_SIZE_DEFAULT +# endif +#endif + #ifdef HAVE_ALLOCA_H # include <alloca.h> # define xalloca(size) (alloca(size)) @@ -1333,15 +1364,27 @@ static inline int regexec_buf(const regex_t *preg, const char *buf, size_t size, /* usage.c: only to be used for testing BUG() implementation (see test-tool) */ extern int BUG_exit_code; +/* usage.c: if bug() is called we should have a BUG_if_bug() afterwards */ +extern int bug_called_must_BUG; + __attribute__((format (printf, 3, 4))) NORETURN void BUG_fl(const char *file, int line, const char *fmt, ...); #define BUG(...) BUG_fl(__FILE__, __LINE__, __VA_ARGS__) +__attribute__((format (printf, 3, 4))) +void bug_fl(const char *file, int line, const char *fmt, ...); +#define bug(...) bug_fl(__FILE__, __LINE__, __VA_ARGS__) +#define BUG_if_bug(...) do { \ + if (bug_called_must_BUG) \ + BUG_fl(__FILE__, __LINE__, __VA_ARGS__); \ +} while (0) +#ifndef FSYNC_METHOD_DEFAULT #ifdef __APPLE__ #define FSYNC_METHOD_DEFAULT FSYNC_METHOD_WRITEOUT_ONLY #else #define FSYNC_METHOD_DEFAULT FSYNC_METHOD_FSYNC #endif +#endif enum fsync_action { FSYNC_WRITEOUT_ONLY, @@ -1464,8 +1507,8 @@ int cmd_main(int, const char **); * Intercept all calls to exit() and route them to trace2 to * optionally emit a message before calling the real exit(). */ -int trace2_cmd_exit_fl(const char *file, int line, int code); -#define exit(code) exit(trace2_cmd_exit_fl(__FILE__, __LINE__, (code))) +int common_exit(const char *file, int line, int code); +#define exit(code) exit(common_exit(__FILE__, __LINE__, (code))) /* * You can mark a stack variable with UNLEAK(var) to avoid it being |