1.0.4.25: 16 byte align asm functions

[sbcl.git] / src / runtime / run-program.c

diff --git a/src/runtime/run-program.c b/src/runtime/run-program.c
index 8fd0ae0..08feaa1 100644 (file)
--- a/src/runtime/run-program.c
+++ b/src/runtime/run-program.c
@@ -13,9 +13,14 @@
  * files for more information.
  */
 
+#include "sbcl.h"
+
+#ifndef LISP_FEATURE_WIN32
+
 #include <stdlib.h>
 #include <sys/file.h>
 #include <sys/types.h>
+#include <signal.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <sys/ioctl.h>
@@ -29,20 +34,20 @@
  * example code found at
  * http://www.yendor.com/programming/unix/apue/pty/main.c
 
--brkint 
+-brkint
 
  */
 
-int set_noecho(int fd) 
+int set_noecho(int fd)
 {
     struct termios  stermios;
-    
+
     if (tcgetattr(fd, &stermios) < 0) return 0;
-    
+
     stermios.c_lflag &= ~(  ECHO | /* ECHOE |  ECHOK | */  ECHONL);
-    stermios.c_oflag |= (ONLCR); 
+    stermios.c_oflag |= (ONLCR);
     stermios.c_iflag &= ~(BRKINT);
-    stermios.c_iflag |= (ICANON|ICRNL); 
+    stermios.c_iflag |= (ICANON|ICRNL);
 
     stermios.c_cc[VERASE]=0177;
     if (tcsetattr(fd, TCSANOW, &stermios) < 0) return 0;
@@ -50,54 +55,61 @@ int set_noecho(int fd)
 }
 
 int spawn(char *program, char *argv[], char *envp[], char *pty_name,
-         int stdin, int stdout, int stderr)
+          int stdin, int stdout, int stderr)
 {
     int pid = fork();
     int fd;
+    sigset_t sset;
 
     if (pid != 0)
-       return pid;
+        return pid;
 
     /* Put us in our own process group. */
 #if defined(hpux)
     setsid();
+#elif defined(LISP_FEATURE_DARWIN)
+    setpgid(0, getpid());
 #elif defined(SVR4) || defined(__linux__) || defined(__osf__)
     setpgrp();
 #else
     setpgrp(0, getpid());
 #endif
 
+    /* unblock signals */
+    sigemptyset(&sset);
+    sigprocmask(SIG_SETMASK, &sset, NULL);
+
     /* If we are supposed to be part of some other pty, go for it. */
     if (pty_name) {
 #if !defined(hpux) && !defined(SVR4)
-       fd = open("/dev/tty", O_RDWR, 0);
-       if (fd >= 0) {
-           ioctl(fd, TIOCNOTTY, 0);
-           close(fd);
-       }
+        fd = open("/dev/tty", O_RDWR, 0);
+        if (fd >= 0) {
+            ioctl(fd, TIOCNOTTY, 0);
+            close(fd);
+        }
 #endif
-       fd = open(pty_name, O_RDWR, 0);
-       dup2(fd, 0);
-       set_noecho(0);
-       dup2(fd, 1);
-       dup2(fd, 2);
-       close(fd);
+        fd = open(pty_name, O_RDWR, 0);
+        dup2(fd, 0);
+        set_noecho(0);
+        dup2(fd, 1);
+        dup2(fd, 2);
+        close(fd);
     } else{
     /* Set up stdin, stdout, and stderr */
     if (stdin >= 0)
-       dup2(stdin, 0);
+        dup2(stdin, 0);
     if (stdout >= 0)
-       dup2(stdout, 1);
+        dup2(stdout, 1);
     if (stderr >= 0)
-       dup2(stderr, 2);
+        dup2(stderr, 2);
     }
     /* Close all other fds. */
 #ifdef SVR4
     for (fd = sysconf(_SC_OPEN_MAX)-1; fd >= 3; fd--)
-       close(fd);
+        close(fd);
 #else
     for (fd = getdtablesize()-1; fd >= 3; fd--)
-       close(fd);
+        close(fd);
 #endif
 
     /* Exec the program. */
@@ -111,3 +123,91 @@ int spawn(char *program, char *argv[], char *envp[], char *pty_name,
     /* The exec didn't work, flame out. */
     exit(1);
 }
+#else  /* !LISP_FEATURE_WIN32 */
+
+#  include <windows.h>
+#  include <process.h>
+#  include <stdio.h>
+#  include <stdlib.h>
+#  include <fcntl.h>
+#  include <io.h>
+
+#define   READ_HANDLE  0
+#define   WRITE_HANDLE 1
+
+/* These functions do not attempt to deal with wchar_t variations. */
+
+/* Get the value of _environ maintained by MSVCRT */
+char **msvcrt_environ ( void ) {
+    return ( _environ );
+}
+
+/* Set up in, out, err pipes and spawn a program, waiting or otherwise. */
+HANDLE spawn (
+    const char *program,
+    const char *const *argv,
+    int in,
+    int out,
+    int err,
+    int wait
+    )
+{
+    int stdout_backup, stdin_backup, stderr_backup, wait_mode;
+    HANDLE hProcess;
+    HANDLE hReturn;
+
+    /* Duplicate and save the original stdin/out/err handles. */
+    stdout_backup = _dup (  _fileno ( stdout ) );
+    stdin_backup  = _dup (  _fileno ( stdin  ) );
+    stderr_backup = _dup (  _fileno ( stderr ) );
+
+    /* If we are not using stdin/out/err
+     * then duplicate the new pipes to current stdin/out/err handles.
+     *
+     * Default std fds are used if in, out or err parameters
+     * are -1. */
+
+    hReturn = (HANDLE)-1;
+    hProcess = (HANDLE)-1;
+    if ( ( out >= 0 ) && ( out != _fileno ( stdout ) ) ) {
+        if ( _dup2 ( out, _fileno ( stdout ) ) != 0 ) goto error_exit;
+    }
+    if ( ( in >= 0 ) && ( in != _fileno ( stdin ) ) ) {
+        if ( _dup2 ( in,  _fileno ( stdin )  ) != 0 ) goto error_exit_out;
+    }
+    if ( ( err >= 0 ) && ( err != _fileno ( stderr ) ) ) {
+        if ( _dup2 ( err, _fileno ( stderr ) ) != 0 ) goto error_exit_in;
+    }
+
+    /* Set the wait mode. */
+    if ( 0 == wait ) {
+        wait_mode = P_NOWAIT;
+    } else {
+        wait_mode = P_WAIT;
+    }
+
+    /* Spawn process given on the command line*/
+    hProcess = (HANDLE) spawnvp ( wait_mode, program, argv );
+
+    /* Now that the process is launched, replace the original
+     * in/out/err handles and close the backups. */
+
+    if ( _dup2 ( stderr_backup, _fileno ( stderr ) ) != 0 ) goto error_exit;
+ error_exit_in:
+    if ( _dup2 ( stdin_backup,  _fileno ( stdin )  ) != 0 ) goto error_exit;
+ error_exit_out:
+    if ( _dup2 ( stdout_backup, _fileno ( stdout ) ) != 0 ) goto error_exit;
+
+    hReturn = hProcess;
+
+ error_exit:
+    close ( stdout_backup );
+    close ( stdin_backup  );
+    close ( stderr_backup );
+
+    return hReturn;
+
+}
+
+
+#endif /* !LISP_FEATURE_WIN32 */