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| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* | |
| 3 * The contents of this file are subject to the Mozilla Public | |
| 4 * License Version 1.1 (the "License"); you may not use this file | |
| 5 * except in compliance with the License. You may obtain a copy of | |
| 6 * the License at http://www.mozilla.org/MPL/ | |
| 7 * | |
| 8 * Software distributed under the License is distributed on an "AS | |
| 9 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or | |
| 10 * implied. See the License for the specific language governing | |
| 11 * rights and limitations under the License. | |
| 12 * | |
| 13 * The Original Code is the Netscape Portable Runtime (NSPR). | |
| 14 * | |
| 15 * The Initial Developer of the Original Code is Netscape | |
| 16 * Communications Corporation. Portions created by Netscape are | |
| 17 * Copyright (C) 1998-2000 Netscape Communications Corporation. All | |
| 18 * Rights Reserved. | |
| 19 * | |
| 20 * Contributor(s): | |
| 21 * | |
| 22 * Alternatively, the contents of this file may be used under the | |
| 23 * terms of the GNU General Public License Version 2 or later (the | |
| 24 * "GPL"), in which case the provisions of the GPL are applicable | |
| 25 * instead of those above. If you wish to allow use of your | |
| 26 * version of this file only under the terms of the GPL and not to | |
| 27 * allow others to use your version of this file under the MPL, | |
| 28 * indicate your decision by deleting the provisions above and | |
| 29 * replace them with the notice and other provisions required by | |
| 30 * the GPL. If you do not delete the provisions above, a recipient | |
| 31 * may use your version of this file under either the MPL or the | |
| 32 * GPL. | |
| 33 */ | |
| 34 | |
| 35 /* GLOBAL FUNCTIONS: | |
| 36 ** DESCRIPTION: | |
| 37 ** PR Atomic operations | |
| 38 */ | |
| 39 | |
| 40 #ifndef pratom_h___ | |
| 41 #define pratom_h___ | |
| 42 | |
| 43 #include "prtypes.h" | |
| 44 #include "prlock.h" | |
| 45 | |
| 46 PR_BEGIN_EXTERN_C | |
| 47 | |
| 48 /* | |
| 49 ** FUNCTION: PR_AtomicIncrement | |
| 50 ** DESCRIPTION: | |
| 51 ** Atomically increment a 32 bit value. | |
| 52 ** INPUTS: | |
| 53 ** val: a pointer to the value to increment | |
| 54 ** RETURN: | |
| 55 ** the returned value is the result of the increment | |
| 56 */ | |
| 57 NSPR_API(PRInt32) PR_AtomicIncrement(PRInt32 *val); | |
| 58 | |
| 59 /* | |
| 60 ** FUNCTION: PR_AtomicDecrement | |
| 61 ** DESCRIPTION: | |
| 62 ** Atomically decrement a 32 bit value. | |
| 63 ** INPUTS: | |
| 64 ** val: a pointer to the value to decrement | |
| 65 ** RETURN: | |
| 66 ** the returned value is the result of the decrement | |
| 67 */ | |
| 68 NSPR_API(PRInt32) PR_AtomicDecrement(PRInt32 *val); | |
| 69 | |
| 70 /* | |
| 71 ** FUNCTION: PR_AtomicSet | |
| 72 ** DESCRIPTION: | |
| 73 ** Atomically set a 32 bit value. | |
| 74 ** INPUTS: | |
| 75 ** val: A pointer to a 32 bit value to be set | |
| 76 ** newval: The newvalue to assign to val | |
| 77 ** RETURN: | |
| 78 ** Returns the prior value | |
| 79 */ | |
| 80 NSPR_API(PRInt32) PR_AtomicSet(PRInt32 *val, PRInt32 newval); | |
| 81 | |
| 82 /* | |
| 83 ** FUNCTION: PR_AtomicAdd | |
| 84 ** DESCRIPTION: | |
| 85 ** Atomically add a 32 bit value. | |
| 86 ** INPUTS: | |
| 87 ** ptr: a pointer to the value to increment | |
| 88 ** val: value to be added | |
| 89 ** RETURN: | |
| 90 ** the returned value is the result of the addition | |
| 91 */ | |
| 92 NSPR_API(PRInt32) PR_AtomicAdd(PRInt32 *ptr, PRInt32 val); | |
| 93 | |
| 94 /* | |
| 95 ** LIFO linked-list (stack) | |
| 96 */ | |
| 97 typedef struct PRStackElemStr PRStackElem; | |
| 98 | |
| 99 struct PRStackElemStr { | |
| 100 PRStackElem *prstk_elem_next; /* next pointer MUST be at offset 0; | |
| 101 assemb
ly language code relies on this */ | |
| 102 }; | |
| 103 | |
| 104 typedef struct PRStackStr PRStack; | |
| 105 | |
| 106 /* | |
| 107 ** FUNCTION: PR_CreateStack | |
| 108 ** DESCRIPTION: | |
| 109 ** Create a stack, a LIFO linked list | |
| 110 ** INPUTS: | |
| 111 ** stack_name: a pointer to string containing the name of the stack | |
| 112 ** RETURN: | |
| 113 ** A pointer to the created stack, if successful, else NULL. | |
| 114 */ | |
| 115 NSPR_API(PRStack *) PR_CreateStack(const char *stack_name); | |
| 116 | |
| 117 /* | |
| 118 ** FUNCTION: PR_StackPush | |
| 119 ** DESCRIPTION: | |
| 120 ** Push an element on the top of the stack | |
| 121 ** INPUTS: | |
| 122 ** stack: pointer to the stack | |
| 123 ** stack_elem: pointer to the stack element | |
| 124 ** RETURN: | |
| 125 ** None | |
| 126 */ | |
| 127 NSPR_API(void) PR_StackPush(PRStack *stack, PRStackElem *stack_
elem); | |
| 128 | |
| 129 /* | |
| 130 ** FUNCTION: PR_StackPop | |
| 131 ** DESCRIPTION: | |
| 132 ** Remove the element on the top of the stack | |
| 133 ** INPUTS: | |
| 134 ** stack: pointer to the stack | |
| 135 ** RETURN: | |
| 136 ** A pointer to the stack element removed from the top of the stack, | |
| 137 ** if non-empty, | |
| 138 ** else NULL | |
| 139 */ | |
| 140 NSPR_API(PRStackElem *) PR_StackPop(PRStack *stack); | |
| 141 | |
| 142 /* | |
| 143 ** FUNCTION: PR_DestroyStack | |
| 144 ** DESCRIPTION: | |
| 145 ** Destroy the stack | |
| 146 ** INPUTS: | |
| 147 ** stack: pointer to the stack | |
| 148 ** RETURN: | |
| 149 ** PR_SUCCESS - if successfully deleted | |
| 150 ** PR_FAILURE - if the stack is not empty | |
| 151 ** PR_GetError will return | |
| 152 ** PR_INVALID_STATE_ERROR - stack i
s not empty | |
| 153 */ | |
| 154 NSPR_API(PRStatus) PR_DestroyStack(PRStack *stack); | |
| 155 | |
| 156 PR_END_EXTERN_C | |
| 157 | |
| 158 #endif /* pratom_h___ */ | |
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Chromium Code Reviews
Issue 665543002:
Remove third_party/npapi/npspy. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master