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Merge branch 'js/windows'

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* js/windows:
  Do not use date.c:tm_to_time_t() from compat/mingw.c
  MSVC: Windows-native implementation for subset of Pthreads API
  MSVC: Fix an "incompatible pointer types" compiler warning
  Windows: avoid the "dup dance" when spawning a child process
  Windows: simplify the pipe(2) implementation
  Windows: boost startup by avoiding a static dependency on shell32.dll
  Windows: disable Python
This commit is contained in:
Junio C Hamano
2010-01-18 18:12:49 -08:00
parent ff6d26a0e1 a6d15bc335
commit 3cd02df46a
8 changed files with 328 additions and 132 deletions
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67
run-command.c
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@ -8,12 +8,14 @@ static inline void close_pair(int fd[2])
close(fd[1]);
}
#ifndef WIN32
static inline void dup_devnull(int to)
{
int fd = open("/dev/null", O_RDWR);
dup2(fd, to);
close(fd);
}
#endif
static const char **prepare_shell_cmd(const char **argv)
{
@ -181,42 +183,30 @@ fail_pipe:
strerror(failed_errno = errno));
#else
{
int s0 = -1, s1 = -1, s2 = -1; /* backups of stdin, stdout, stderr */
int fhin = 0, fhout = 1, fherr = 2;
const char **sargv = cmd->argv;
char **env = environ;
if (cmd->no_stdin) {
s0 = dup(0);
dup_devnull(0);
} else if (need_in) {
s0 = dup(0);
dup2(fdin[0], 0);
} else if (cmd->in) {
s0 = dup(0);
dup2(cmd->in, 0);
}
if (cmd->no_stdin)
fhin = open("/dev/null", O_RDWR);
else if (need_in)
fhin = dup(fdin[0]);
else if (cmd->in)
fhin = dup(cmd->in);
if (cmd->no_stderr) {
s2 = dup(2);
dup_devnull(2);
} else if (need_err) {
s2 = dup(2);
dup2(fderr[1], 2);
}
if (cmd->no_stderr)
fherr = open("/dev/null", O_RDWR);
else if (need_err)
fherr = dup(fderr[1]);
if (cmd->no_stdout) {
s1 = dup(1);
dup_devnull(1);
} else if (cmd->stdout_to_stderr) {
s1 = dup(1);
dup2(2, 1);
} else if (need_out) {
s1 = dup(1);
dup2(fdout[1], 1);
} else if (cmd->out > 1) {
s1 = dup(1);
dup2(cmd->out, 1);
}
if (cmd->no_stdout)
fhout = open("/dev/null", O_RDWR);
else if (cmd->stdout_to_stderr)
fhout = dup(fherr);
else if (need_out)
fhout = dup(fdout[1]);
else if (cmd->out > 1)
fhout = dup(cmd->out);
if (cmd->dir)
die("chdir in start_command() not implemented");
@ -229,7 +219,8 @@ fail_pipe:
cmd->argv = prepare_shell_cmd(cmd->argv);
}
cmd->pid = mingw_spawnvpe(cmd->argv[0], cmd->argv, env);
cmd->pid = mingw_spawnvpe(cmd->argv[0], cmd->argv, env,
fhin, fhout, fherr);
failed_errno = errno;
if (cmd->pid < 0 && (!cmd->silent_exec_failure || errno != ENOENT))
error("cannot spawn %s: %s", cmd->argv[0], strerror(errno));
@ -240,12 +231,12 @@ fail_pipe:
free(cmd->argv);
cmd->argv = sargv;
if (s0 >= 0)
dup2(s0, 0), close(s0);
if (s1 >= 0)
dup2(s1, 1), close(s1);
if (s2 >= 0)
dup2(s2, 2), close(s2);
if (fhin != 0)
close(fhin);
if (fhout != 1)
close(fhout);
if (fherr != 2)
close(fherr);
}
#endif