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Diffstat (limited to 'libjava/java/lang/natPosixProcess.cc')
| -rw-r--r-- | libjava/java/lang/natPosixProcess.cc | 209 |
1 files changed, 0 insertions, 209 deletions
diff --git a/libjava/java/lang/natPosixProcess.cc b/libjava/java/lang/natPosixProcess.cc deleted file mode 100644 index 63e141a64c2..00000000000 --- a/libjava/java/lang/natPosixProcess.cc +++ /dev/null @@ -1,209 +0,0 @@ -// natPosixProcess.cc - Native side of POSIX process code. - -/* Copyright (C) 1998, 1999 Free Software Foundation - - This file is part of libgcj. - -This software is copyrighted work licensed under the terms of the -Libgcj License. Please consult the file "LIBGCJ_LICENSE" for -details. */ - -#include <config.h> - -#ifdef HAVE_UNISTD_H -#include <unistd.h> -#endif -#include <errno.h> -#include <fcntl.h> -#include <sys/types.h> -#include <sys/wait.h> -#include <signal.h> -#include <string.h> -#include <stdlib.h> -#include <stdio.h> - -#include <gcj/cni.h> -#include <jvm.h> - -#include <java/lang/ConcreteProcess.h> -#include <java/lang/IllegalThreadStateException.h> -#include <java/lang/InterruptedException.h> -#include <java/lang/NullPointerException.h> -#include <java/lang/Thread.h> -#include <java/io/FileDescriptor.h> -#include <java/io/FileInputStream.h> -#include <java/io/FileOutputStream.h> -#include <java/io/IOException.h> - -extern char **environ; - -void -java::lang::ConcreteProcess::destroy (void) -{ - if (! hasExited) - { - // Really kill it. - kill ((pid_t) pid, SIGKILL); - } -} - -jint -java::lang::ConcreteProcess::exitValue (void) -{ - if (! hasExited) - { - int wstat; - pid_t r = waitpid ((pid_t) pid, &wstat, WNOHANG); - if (r == -1) - { - jstring x = JvNewStringLatin1 (strerror (errno)); - _Jv_Throw (new IllegalThreadStateException (x)); - } - - hasExited = true; - // Just use the raw status. FIXME: what is right? - status = wstat; - } - - return status; -} - -jint -java::lang::ConcreteProcess::waitFor (void) -{ - if (! hasExited) - { - int wstat; - int r = waitpid ((pid_t) pid, &wstat, 0); - - if (r != -1) - { - hasExited = true; - // Just use the raw status. FIXME: what is right? - status = wstat; - } - - if (java::lang::Thread::interrupted()) - _Jv_Throw (new InterruptedException (JvNewStringLatin1 ("wait interrupted"))); - } - - return status; -} - -static char * -new_string (jstring string) -{ - jsize s = _Jv_GetStringUTFLength (string); - char *buf = (char *) _Jv_Malloc (s + 1); - _Jv_GetStringUTFRegion (string, 0, s, buf); - buf[s] = '\0'; - return buf; -} - -void -java::lang::ConcreteProcess::startProcess (jstringArray progarray, - jstringArray envp) -{ - using namespace java::io; - - hasExited = false; - - if (! progarray) - _Jv_Throw (new NullPointerException); - - // Transform arrays to native form. - // FIXME: we use malloc here. We shouldn't. If an exception is - // thrown we will leak memory. - char **args = (char **) _Jv_Malloc ((progarray->length + 1) - * sizeof (char *)); - char **env = NULL; - - // FIXME: GC will fail here if _Jv_Malloc throws an exception. - // That's because we have to manually free the contents, but we - jstring *elts = elements (progarray); - for (int i = 0; i < progarray->length; ++i) - args[i] = new_string (elts[i]); - args[progarray->length] = NULL; - - if (envp) - { - env = (char **) _Jv_Malloc ((envp->length + 1) * sizeof (char *)); - elts = elements (envp); - for (int i = 0; i < envp->length; ++i) - env[i] = new_string (elts[i]); - env[envp->length] = NULL; - } - - // Create pipes for I/O. - int inp[2], outp[2], errp[2]; - - if (pipe (inp) - || pipe (outp) - || pipe (errp)) - { - ioerror: - // FIXME. - _Jv_Free (args); - if (env) - _Jv_Free (env); - _Jv_Throw (new IOException (JvNewStringLatin1 (strerror (errno)))); - } - - // We create the streams before forking. Otherwise if we had an - // error while creating the streams we would have run the child with - // no way to communicate with it. - errorStream = new FileInputStream (new FileDescriptor (errp[0])); - inputStream = new FileInputStream (new FileDescriptor (inp[0])); - outputStream = new FileOutputStream (new FileDescriptor (outp[1])); - - // We don't use vfork() because that would cause the local - // environment to be set by the child. - if ((pid = (jlong) fork ()) == -1) - goto ioerror; - - if (pid == 0) - { - // Child process, so remap descriptors and exec. - - if (envp) - { - // preserve PATH unless specified explicitly - char *path_val = getenv ("PATH"); - environ = env; - if (getenv ("PATH") == NULL) - { - char *path_env = (char *) _Jv_Malloc (strlen (path_val) + 5 + 1); - strcpy (path_env, "PATH="); - strcat (path_env, path_val); - putenv (path_env); - } - } - - // We ignore errors from dup2 because they should never occur. - dup2 (outp[0], 0); - dup2 (inp[1], 1); - dup2 (errp[1], 2); - - close (inp[0]); - close (inp[1]); - close (errp[0]); - close (errp[1]); - close (outp[0]); - close (outp[1]); - - execvp (args[0], args); - // FIXME: should throw an IOException if execvp() fails. Not trivial, - // because _Jv_Throw won't work from child process - _exit (127); - } - - // Parent. Close extra file descriptors and mark ours as - // close-on-exec. - close (outp[0]); - close (inp[1]); - close (errp[1]); - - fcntl (outp[1], F_SETFD, 1); - fcntl (inp[0], F_SETFD, 1); - fcntl (errp[0], F_SETFD, 1); -} |