toolkit/mozapps/update/updater/launchchild_osx.mm

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/toolkit/mozapps/update/updater/launchchild_osx.mm	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,136 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* vim:set ts=2 sw=2 sts=2 et cindent: */
     1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.9 +
    1.10 +#include <Cocoa/Cocoa.h>
    1.11 +#include <CoreServices/CoreServices.h>
    1.12 +#include <crt_externs.h>
    1.13 +#include <stdlib.h>
    1.14 +#include <stdio.h>
    1.15 +#include <spawn.h>
    1.16 +#include "readstrings.h"
    1.17 +
    1.18 +// Prefer the currently running architecture (this is the same as the
    1.19 +// architecture that launched the updater) and fallback to CPU_TYPE_ANY if it
    1.20 +// is no longer available after the update.
    1.21 +static cpu_type_t pref_cpu_types[2] = {
    1.22 +#if defined(__i386__)
    1.23 +                                 CPU_TYPE_X86,
    1.24 +#elif defined(__x86_64__)
    1.25 +                                 CPU_TYPE_X86_64,
    1.26 +#elif defined(__ppc__)
    1.27 +                                 CPU_TYPE_POWERPC,
    1.28 +#endif
    1.29 +                                 CPU_TYPE_ANY };
    1.30 +
    1.31 +void LaunchChild(int argc, char **argv)
    1.32 +{
    1.33 +  // Initialize spawn attributes.
    1.34 +  posix_spawnattr_t spawnattr;
    1.35 +  if (posix_spawnattr_init(&spawnattr) != 0) {
    1.36 +    printf("Failed to init posix spawn attribute.");
    1.37 +    return;
    1.38 +  }
    1.39 +
    1.40 +  // Set spawn attributes.
    1.41 +  size_t attr_count = 2;
    1.42 +  size_t attr_ocount = 0;
    1.43 +  if (posix_spawnattr_setbinpref_np(&spawnattr, attr_count, pref_cpu_types, &attr_ocount) != 0 ||
    1.44 +      attr_ocount != attr_count) {
    1.45 +    printf("Failed to set binary preference on posix spawn attribute.");
    1.46 +    posix_spawnattr_destroy(&spawnattr);
    1.47 +    return;
    1.48 +  }
    1.49 +
    1.50 +  // "posix_spawnp" uses null termination for arguments rather than a count.
    1.51 +  // Note that we are not duplicating the argument strings themselves.
    1.52 +  char** argv_copy = (char**)malloc((argc + 1) * sizeof(char*));
    1.53 +  if (!argv_copy) {
    1.54 +    printf("Failed to allocate memory for arguments.");
    1.55 +    posix_spawnattr_destroy(&spawnattr);
    1.56 +    return;
    1.57 +  }
    1.58 +  for (int i = 0; i < argc; i++) {
    1.59 +    argv_copy[i] = argv[i];
    1.60 +  }
    1.61 +  argv_copy[argc] = NULL;
    1.62 +
    1.63 +  // Pass along our environment.
    1.64 +  char** envp = NULL;
    1.65 +  char*** cocoaEnvironment = _NSGetEnviron();
    1.66 +  if (cocoaEnvironment) {
    1.67 +    envp = *cocoaEnvironment;
    1.68 +  }
    1.69 +
    1.70 +  int result = posix_spawnp(NULL, argv_copy[0], NULL, &spawnattr, argv_copy, envp);
    1.71 +
    1.72 +  free(argv_copy);
    1.73 +  posix_spawnattr_destroy(&spawnattr);
    1.74 +
    1.75 +  if (result != 0) {
    1.76 +    printf("Process spawn failed with code %d!", result);
    1.77 +  }
    1.78 +}
    1.79 +
    1.80 +void
    1.81 +LaunchMacPostProcess(const char* aAppExe)
    1.82 +{
    1.83 +  // Launch helper to perform post processing for the update; this is the Mac
    1.84 +  // analogue of LaunchWinPostProcess (PostUpdateWin).
    1.85 +  NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
    1.86 +
    1.87 +  // Find the app bundle containing the executable path given
    1.88 +  NSString *path = [NSString stringWithUTF8String:aAppExe];
    1.89 +  NSBundle *bundle;
    1.90 +  do {
    1.91 +    path = [path stringByDeletingLastPathComponent];
    1.92 +    bundle = [NSBundle bundleWithPath:path];
    1.93 +  } while ((!bundle || ![bundle bundleIdentifier]) && [path length] > 1);
    1.94 +  if (!bundle) {
    1.95 +    // No bundle found for the app being launched
    1.96 +    [pool release];
    1.97 +    return;
    1.98 +  }
    1.99 +
   1.100 +  NSString *iniPath = [bundle pathForResource:@"updater" ofType:@"ini"];
   1.101 +  if (!iniPath) {
   1.102 +    // the file does not exist; there is nothing to run
   1.103 +    [pool release];
   1.104 +    return;
   1.105 +  }
   1.106 +
   1.107 +  int readResult;
   1.108 +  char values[2][MAX_TEXT_LEN];
   1.109 +  readResult = ReadStrings([iniPath UTF8String],
   1.110 +                           "ExeArg\0ExeRelPath\0",
   1.111 +                           2,
   1.112 +                           values,
   1.113 +                           "PostUpdateMac");
   1.114 +  if (readResult) {
   1.115 +    [pool release];
   1.116 +    return;
   1.117 +  }
   1.118 +
   1.119 +  NSString *exeArg = [NSString stringWithUTF8String:values[0]];
   1.120 +  NSString *exeRelPath = [NSString stringWithUTF8String:values[1]];
   1.121 +  if (!exeArg || !exeRelPath) {
   1.122 +    [pool release];
   1.123 +    return;
   1.124 +  }
   1.125 +  
   1.126 +  NSString *resourcePath = [bundle resourcePath];
   1.127 +  NSString *exeFullPath = [resourcePath stringByAppendingPathComponent:exeRelPath];
   1.128 +
   1.129 +  NSTask *task = [[NSTask alloc] init];
   1.130 +  [task setLaunchPath:exeFullPath];
   1.131 +  [task setArguments:[NSArray arrayWithObject:exeArg]];
   1.132 +  [task launch];
   1.133 +  [task waitUntilExit];
   1.134 +  // ignore the return value of the task, there's nothing we can do with it
   1.135 +  [task release];
   1.136 +
   1.137 +  [pool release];  
   1.138 +}
   1.139 +

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