xpcom/ds/nsProperties.cpp@6474c204b198 (annotated)
xpcom/ds/nsProperties.cpp
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #include "nsProperties.h" |
| michael@0 | 7 | |
| michael@0 | 8 | //////////////////////////////////////////////////////////////////////////////// |
| michael@0 | 9 | |
| michael@0 | 10 | NS_IMPL_AGGREGATED(nsProperties) |
| michael@0 | 11 | NS_INTERFACE_MAP_BEGIN_AGGREGATED(nsProperties) |
| michael@0 | 12 | NS_INTERFACE_MAP_ENTRY(nsIProperties) |
| michael@0 | 13 | NS_INTERFACE_MAP_END |
| michael@0 | 14 | |
| michael@0 | 15 | NS_IMETHODIMP |
| michael@0 | 16 | nsProperties::Get(const char* prop, const nsIID & uuid, void* *result) |
| michael@0 | 17 | { |
| michael@0 | 18 | if (NS_WARN_IF(!prop)) |
| michael@0 | 19 | return NS_ERROR_INVALID_ARG; |
| michael@0 | 20 | |
| michael@0 | 21 | nsCOMPtr<nsISupports> value; |
| michael@0 | 22 | if (!nsProperties_HashBase::Get(prop, getter_AddRefs(value))) { |
| michael@0 | 23 | return NS_ERROR_FAILURE; |
| michael@0 | 24 | } |
| michael@0 | 25 | return (value) ? value->QueryInterface(uuid, result) : NS_ERROR_NO_INTERFACE; |
| michael@0 | 26 | } |
| michael@0 | 27 | |
| michael@0 | 28 | NS_IMETHODIMP |
| michael@0 | 29 | nsProperties::Set(const char* prop, nsISupports* value) |
| michael@0 | 30 | { |
| michael@0 | 31 | if (NS_WARN_IF(!prop)) |
| michael@0 | 32 | return NS_ERROR_INVALID_ARG; |
| michael@0 | 33 | Put(prop, value); |
| michael@0 | 34 | return NS_OK; |
| michael@0 | 35 | } |
| michael@0 | 36 | |
| michael@0 | 37 | NS_IMETHODIMP |
| michael@0 | 38 | nsProperties::Undefine(const char* prop) |
| michael@0 | 39 | { |
| michael@0 | 40 | if (NS_WARN_IF(!prop)) |
| michael@0 | 41 | return NS_ERROR_INVALID_ARG; |
| michael@0 | 42 | |
| michael@0 | 43 | nsCOMPtr<nsISupports> value; |
| michael@0 | 44 | if (!nsProperties_HashBase::Get(prop, getter_AddRefs(value))) |
| michael@0 | 45 | return NS_ERROR_FAILURE; |
| michael@0 | 46 | |
| michael@0 | 47 | Remove(prop); |
| michael@0 | 48 | return NS_OK; |
| michael@0 | 49 | } |
| michael@0 | 50 | |
| michael@0 | 51 | NS_IMETHODIMP |
| michael@0 | 52 | nsProperties::Has(const char* prop, bool *result) |
| michael@0 | 53 | { |
| michael@0 | 54 | if (NS_WARN_IF(!prop)) |
| michael@0 | 55 | return NS_ERROR_INVALID_ARG; |
| michael@0 | 56 | |
| michael@0 | 57 | nsCOMPtr<nsISupports> value; |
| michael@0 | 58 | *result = nsProperties_HashBase::Get(prop, |
| michael@0 | 59 | getter_AddRefs(value)); |
| michael@0 | 60 | return NS_OK; |
| michael@0 | 61 | } |
| michael@0 | 62 | |
| michael@0 | 63 | struct GetKeysEnumData |
| michael@0 | 64 | { |
| michael@0 | 65 | char **keys; |
| michael@0 | 66 | uint32_t next; |
| michael@0 | 67 | nsresult res; |
| michael@0 | 68 | }; |
| michael@0 | 69 | |
| michael@0 | 70 | PLDHashOperator |
| michael@0 | 71 | GetKeysEnumerate(const char *key, nsISupports* data, |
| michael@0 | 72 | void *arg) |
| michael@0 | 73 | { |
| michael@0 | 74 | GetKeysEnumData *gkedp = (GetKeysEnumData *)arg; |
| michael@0 | 75 | gkedp->keys[gkedp->next] = strdup(key); |
| michael@0 | 76 | |
| michael@0 | 77 | if (!gkedp->keys[gkedp->next]) { |
| michael@0 | 78 | gkedp->res = NS_ERROR_OUT_OF_MEMORY; |
| michael@0 | 79 | return PL_DHASH_STOP; |
| michael@0 | 80 | } |
| michael@0 | 81 | |
| michael@0 | 82 | gkedp->next++; |
| michael@0 | 83 | return PL_DHASH_NEXT; |
| michael@0 | 84 | } |
| michael@0 | 85 | |
| michael@0 | 86 | NS_IMETHODIMP |
| michael@0 | 87 | nsProperties::GetKeys(uint32_t *count, char ***keys) |
| michael@0 | 88 | { |
| michael@0 | 89 | if (NS_WARN_IF(!count) || NS_WARN_IF(!keys)) |
| michael@0 | 90 | return NS_ERROR_INVALID_ARG; |
| michael@0 | 91 | |
| michael@0 | 92 | uint32_t n = Count(); |
| michael@0 | 93 | char ** k = (char **) nsMemory::Alloc(n * sizeof(char *)); |
| michael@0 | 94 | |
| michael@0 | 95 | GetKeysEnumData gked; |
| michael@0 | 96 | gked.keys = k; |
| michael@0 | 97 | gked.next = 0; |
| michael@0 | 98 | gked.res = NS_OK; |
| michael@0 | 99 | |
| michael@0 | 100 | EnumerateRead(GetKeysEnumerate, &gked); |
| michael@0 | 101 | |
| michael@0 | 102 | nsresult rv = gked.res; |
| michael@0 | 103 | if (NS_FAILED(rv)) { |
| michael@0 | 104 | // Free 'em all |
| michael@0 | 105 | for (uint32_t i = 0; i < gked.next; i++) |
| michael@0 | 106 | nsMemory::Free(k[i]); |
| michael@0 | 107 | nsMemory::Free(k); |
| michael@0 | 108 | return rv; |
| michael@0 | 109 | } |
| michael@0 | 110 | |
| michael@0 | 111 | *count = n; |
| michael@0 | 112 | *keys = k; |
| michael@0 | 113 | return NS_OK; |
| michael@0 | 114 | } |
| michael@0 | 115 | |
| michael@0 | 116 | //////////////////////////////////////////////////////////////////////////////// |
