diff options
Diffstat (limited to 'compat/mingw.c')
| -rw-r--r-- | compat/mingw.c | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/compat/mingw.c b/compat/mingw.c index 30716903f5..9a8e336582 100644 --- a/compat/mingw.c +++ b/compat/mingw.c @@ -140,6 +140,23 @@ int mingw_open (const char *filename, int oflags, ...) return fd; } +#undef write +ssize_t mingw_write(int fd, const void *buf, size_t count) +{ + /* + * While write() calls to a file on a local disk are translated + * into WriteFile() calls with a maximum size of 64KB on Windows + * XP and 256KB on Vista, no such cap is placed on writes to + * files over the network on Windows XP. Unfortunately, there + * seems to be a limit of 32MB-28KB on X64 and 64MB-32KB on x86; + * bigger writes fail on Windows XP. + * So we cap to a nice 31MB here to avoid write failures over + * the net without changing the number of WriteFile() calls in + * the local case. + */ + return write(fd, buf, min(count, 31 * 1024 * 1024)); +} + #undef fopen FILE *mingw_fopen (const char *filename, const char *otype) { @@ -650,6 +667,7 @@ static int env_compare(const void *a, const void *b) } static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **env, + const char *dir, int prepend_cmd, int fhin, int fhout, int fherr) { STARTUPINFO si; @@ -729,7 +747,7 @@ static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **env, memset(&pi, 0, sizeof(pi)); ret = CreateProcess(cmd, args.buf, NULL, NULL, TRUE, flags, - env ? envblk.buf : NULL, NULL, &si, &pi); + env ? envblk.buf : NULL, dir, &si, &pi); if (env) strbuf_release(&envblk); @@ -746,10 +764,11 @@ static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **env, static pid_t mingw_spawnve(const char *cmd, const char **argv, char **env, int prepend_cmd) { - return mingw_spawnve_fd(cmd, argv, env, prepend_cmd, 0, 1, 2); + return mingw_spawnve_fd(cmd, argv, env, NULL, prepend_cmd, 0, 1, 2); } pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env, + const char *dir, int fhin, int fhout, int fherr) { pid_t pid; @@ -772,14 +791,14 @@ pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env, pid = -1; } else { - pid = mingw_spawnve_fd(iprog, argv, env, 1, + pid = mingw_spawnve_fd(iprog, argv, env, dir, 1, fhin, fhout, fherr); free(iprog); } argv[0] = argv0; } else - pid = mingw_spawnve_fd(prog, argv, env, 0, + pid = mingw_spawnve_fd(prog, argv, env, dir, 0, fhin, fhout, fherr); free(prog); } |