diff options
Diffstat (limited to 'git-compat-util.h')
| -rw-r--r-- | git-compat-util.h | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/git-compat-util.h b/git-compat-util.h index 58d7708296..4e51a1c48b 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 @@ -258,6 +261,7 @@ static inline int is_xplatform_dir_sep(int c) #include <sys/resource.h> #include <sys/socket.h> #include <sys/ioctl.h> +#include <sys/statvfs.h> #include <termios.h> #ifndef NO_SYS_SELECT_H #include <sys/select.h> @@ -487,7 +491,7 @@ 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; @@ -995,6 +999,28 @@ static inline unsigned long cast_size_t_to_ulong(size_t a) return (unsigned long)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)) |