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comparison: netwerk/ipc/NeckoCommon.h
netwerk/ipc/NeckoCommon.h
- changeset 2
- 7e26c7da4463
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| -1:000000000000 | 0:df24d59a3db6 |
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| 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim: set sw=2 ts=8 et tw=80 : */ | |
| 3 | |
| 4 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 5 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 6 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 7 | |
| 8 #ifndef mozilla_net_NeckoCommon_h | |
| 9 #define mozilla_net_NeckoCommon_h | |
| 10 | |
| 11 #include "nsXULAppAPI.h" | |
| 12 #include "prenv.h" | |
| 13 #include "nsPrintfCString.h" | |
| 14 #include "mozilla/Preferences.h" | |
| 15 | |
| 16 namespace mozilla { namespace dom { | |
| 17 class TabChild; | |
| 18 }} | |
| 19 | |
| 20 #if defined(DEBUG) || defined(ENABLE_TESTS) | |
| 21 # define NECKO_ERRORS_ARE_FATAL_DEFAULT true | |
| 22 #else | |
| 23 # define NECKO_ERRORS_ARE_FATAL_DEFAULT false | |
| 24 #endif | |
| 25 | |
| 26 // TODO: Eventually remove NECKO_MAYBE_ABORT and DROP_DEAD (bug 575494). | |
| 27 // Still useful for catching listener interfaces we don't yet support across | |
| 28 // processes, etc. | |
| 29 | |
| 30 #define NECKO_MAYBE_ABORT(msg) \ | |
| 31 do { \ | |
| 32 bool abort = NECKO_ERRORS_ARE_FATAL_DEFAULT; \ | |
| 33 const char *e = PR_GetEnv("NECKO_ERRORS_ARE_FATAL"); \ | |
| 34 if (e) \ | |
| 35 abort = (*e == '0') ? false : true; \ | |
| 36 if (abort) { \ | |
| 37 msg.Append(" (set NECKO_ERRORS_ARE_FATAL=0 in your environment to " \ | |
| 38 "convert this error into a warning.)"); \ | |
| 39 NS_RUNTIMEABORT(msg.get()); \ | |
| 40 } else { \ | |
| 41 msg.Append(" (set NECKO_ERRORS_ARE_FATAL=1 in your environment to " \ | |
| 42 "convert this warning into a fatal error.)"); \ | |
| 43 NS_WARNING(msg.get()); \ | |
| 44 } \ | |
| 45 } while (0) | |
| 46 | |
| 47 #define DROP_DEAD() \ | |
| 48 do { \ | |
| 49 nsPrintfCString msg("NECKO ERROR: '%s' UNIMPLEMENTED", \ | |
| 50 __FUNCTION__); \ | |
| 51 NECKO_MAYBE_ABORT(msg); \ | |
| 52 return NS_ERROR_NOT_IMPLEMENTED; \ | |
| 53 } while (0) | |
| 54 | |
| 55 #define ENSURE_CALLED_BEFORE_ASYNC_OPEN() \ | |
| 56 do { \ | |
| 57 if (mIsPending || mWasOpened) { \ | |
| 58 nsPrintfCString msg("'%s' called after AsyncOpen: %s +%d", \ | |
| 59 __FUNCTION__, __FILE__, __LINE__); \ | |
| 60 NECKO_MAYBE_ABORT(msg); \ | |
| 61 } \ | |
| 62 NS_ENSURE_TRUE(!mIsPending, NS_ERROR_IN_PROGRESS); \ | |
| 63 NS_ENSURE_TRUE(!mWasOpened, NS_ERROR_ALREADY_OPENED); \ | |
| 64 } while (0) | |
| 65 | |
| 66 // Fails call if made after request observers (on-modify-request, etc) have been | |
| 67 // called | |
| 68 | |
| 69 #define ENSURE_CALLED_BEFORE_CONNECT() \ | |
| 70 do { \ | |
| 71 if (mRequestObserversCalled) { \ | |
| 72 nsPrintfCString msg("'%s' called too late: %s +%d", \ | |
| 73 __FUNCTION__, __FILE__, __LINE__); \ | |
| 74 NECKO_MAYBE_ABORT(msg); \ | |
| 75 if (mIsPending) \ | |
| 76 return NS_ERROR_IN_PROGRESS; \ | |
| 77 MOZ_ASSERT(mWasOpened); \ | |
| 78 return NS_ERROR_ALREADY_OPENED; \ | |
| 79 } \ | |
| 80 } while (0) | |
| 81 | |
| 82 namespace mozilla { | |
| 83 namespace net { | |
| 84 | |
| 85 inline bool | |
| 86 IsNeckoChild() | |
| 87 { | |
| 88 static bool didCheck = false; | |
| 89 static bool amChild = false; | |
| 90 | |
| 91 if (!didCheck) { | |
| 92 // This allows independent necko-stacks (instead of single stack in chrome) | |
| 93 // to still be run. | |
| 94 // TODO: Remove eventually when no longer supported (bug 571126) | |
| 95 const char * e = PR_GetEnv("NECKO_SEPARATE_STACKS"); | |
| 96 if (!e) | |
| 97 amChild = (XRE_GetProcessType() == GeckoProcessType_Content); | |
| 98 didCheck = true; | |
| 99 } | |
| 100 return amChild; | |
| 101 } | |
| 102 | |
| 103 namespace NeckoCommonInternal { | |
| 104 extern bool gSecurityDisabled; | |
| 105 extern bool gRegisteredBool; | |
| 106 } | |
| 107 | |
| 108 // This should always return true unless xpcshell tests are being used | |
| 109 inline bool | |
| 110 UsingNeckoIPCSecurity() | |
| 111 { | |
| 112 | |
| 113 if (!NeckoCommonInternal::gRegisteredBool) { | |
| 114 Preferences::AddBoolVarCache(&NeckoCommonInternal::gSecurityDisabled, | |
| 115 "network.disable.ipc.security"); | |
| 116 NeckoCommonInternal::gRegisteredBool = true; | |
| 117 } | |
| 118 return !NeckoCommonInternal::gSecurityDisabled; | |
| 119 } | |
| 120 | |
| 121 inline bool | |
| 122 MissingRequiredTabChild(mozilla::dom::TabChild* tabChild, | |
| 123 const char* context) | |
| 124 { | |
| 125 if (UsingNeckoIPCSecurity()) { | |
| 126 if (!tabChild) { | |
| 127 printf_stderr("WARNING: child tried to open %s IPDL channel w/o " | |
| 128 "security info\n", context); | |
| 129 return true; | |
| 130 } | |
| 131 } | |
| 132 return false; | |
| 133 } | |
| 134 | |
| 135 | |
| 136 } // namespace net | |
| 137 } // namespace mozilla | |
| 138 | |
| 139 #endif // mozilla_net_NeckoCommon_h | |
| 140 |
