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| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 /* | |
| 7 ** A collection of things thought to be obsolete | |
| 8 */ | |
| 9 | |
| 10 #if defined(PROBSLET_H) | |
| 11 #else | |
| 12 #define PROBSLET_H | |
| 13 | |
| 14 #include "prio.h" | |
| 15 #include "private/pprio.h" /* for PROsfd */ | |
| 16 | |
| 17 PR_BEGIN_EXTERN_C | |
| 18 | |
| 19 /* | |
| 20 ** Yield the current thread. The proper function to use in place of | |
| 21 ** PR_Yield() is PR_Sleep() with an argument of PR_INTERVAL_NO_WAIT. | |
| 22 */ | |
| 23 NSPR_API(PRStatus) PR_Yield(void); | |
| 24 | |
| 25 /************************************************************************/ | |
| 26 /************* The following definitions are for select *****************/ | |
| 27 /************************************************************************/ | |
| 28 | |
| 29 /* | |
| 30 ** The following is obsolete and will be deleted in the next release! | |
| 31 ** These are provided for compatibility, but are GUARANTEED to be slow. | |
| 32 ** | |
| 33 ** Override PR_MAX_SELECT_DESC if you need more space in the select set. | |
| 34 */ | |
| 35 #ifndef PR_MAX_SELECT_DESC | |
| 36 #define PR_MAX_SELECT_DESC 1024 | |
| 37 #endif | |
| 38 typedef struct PR_fd_set { | |
| 39 PRUint32 hsize; | |
| 40 PRFileDesc *harray[PR_MAX_SELECT_DESC]; | |
| 41 PRUint32 nsize; | |
| 42 PROsfd narray[PR_MAX_SELECT_DESC]; | |
| 43 } PR_fd_set; | |
| 44 | |
| 45 /* | |
| 46 ************************************************************************* | |
| 47 ** FUNCTION: PR_Select | |
| 48 ** DESCRIPTION: | |
| 49 ** | |
| 50 ** The call returns as soon as I/O is ready on one or more of the underlying | |
| 51 ** file/socket descriptors or an exceptional condition is pending. A count of th
e | |
| 52 ** number of ready descriptors is returned unless a timeout occurs in which case
| |
| 53 ** zero is returned. On return, PR_Select replaces the given descriptor sets wi
th | |
| 54 ** subsets consisting of those descriptors that are ready for the requested cond
ition. | |
| 55 ** The total number of ready descriptors in all the sets is the return value. | |
| 56 ** | |
| 57 ** INPUTS: | |
| 58 ** PRInt32 num | |
| 59 ** This argument is unused but is provided for select(unix) interface | |
| 60 ** compatability. All input PR_fd_set arguments are self-describing | |
| 61 ** with its own maximum number of elements in the set. | |
| 62 ** | |
| 63 ** PR_fd_set *readfds | |
| 64 ** A set describing the io descriptors for which ready for reading | |
| 65 ** condition is of interest. | |
| 66 ** | |
| 67 ** PR_fd_set *writefds | |
| 68 ** A set describing the io descriptors for which ready for writing | |
| 69 ** condition is of interest. | |
| 70 ** | |
| 71 ** PR_fd_set *exceptfds | |
| 72 ** A set describing the io descriptors for which exception pending | |
| 73 ** condition is of interest. | |
| 74 ** | |
| 75 ** Any of the above readfds, writefds or exceptfds may be given as NULL | |
| 76 ** pointers if no descriptors are of interest for that particular condition.
| |
| 77 ** | |
| 78 ** PRIntervalTime timeout | |
| 79 ** Amount of time the call will block waiting for I/O to become ready. | |
| 80 ** If this time expires without any I/O becoming ready, the result will | |
| 81 ** be zero. | |
| 82 ** | |
| 83 ** OUTPUTS: | |
| 84 ** PR_fd_set *readfds | |
| 85 ** A set describing the io descriptors which are ready for reading. | |
| 86 ** | |
| 87 ** PR_fd_set *writefds | |
| 88 ** A set describing the io descriptors which are ready for writing. | |
| 89 ** | |
| 90 ** PR_fd_set *exceptfds | |
| 91 ** A set describing the io descriptors which have pending exception. | |
| 92 ** | |
| 93 ** RETURN:PRInt32 | |
| 94 ** Number of io descriptors with asked for conditions or zero if the function | |
| 95 ** timed out or -1 on failure. The reason for the failure is obtained by | |
| 96 ** calling PR_GetError(). | |
| 97 ** XXX can we implement this on windoze and mac? | |
| 98 ************************************************************************** | |
| 99 */ | |
| 100 NSPR_API(PRInt32) PR_Select( | |
| 101 PRInt32 num, PR_fd_set *readfds, PR_fd_set *writefds, | |
| 102 PR_fd_set *exceptfds, PRIntervalTime timeout); | |
| 103 | |
| 104 /* | |
| 105 ** The following are not thread safe for two threads operating on them at the | |
| 106 ** same time. | |
| 107 ** | |
| 108 ** The following routines are provided for manipulating io descriptor sets. | |
| 109 ** PR_FD_ZERO(&fdset) initializes a descriptor set fdset to the null set. | |
| 110 ** PR_FD_SET(fd, &fdset) includes a particular file descriptor fd in fdset. | |
| 111 ** PR_FD_CLR(fd, &fdset) removes a file descriptor fd from fdset. | |
| 112 ** PR_FD_ISSET(fd, &fdset) is nonzero if file descriptor fd is a member of | |
| 113 ** fdset, zero otherwise. | |
| 114 ** | |
| 115 ** PR_FD_NSET(osfd, &fdset) includes a particular native file descriptor osfd | |
| 116 ** in fdset. | |
| 117 ** PR_FD_NCLR(osfd, &fdset) removes a native file descriptor osfd from fdset. | |
| 118 ** PR_FD_NISSET(osfd, &fdset) is nonzero if native file descriptor osfd is a mem
ber of | |
| 119 ** fdset, zero otherwise. | |
| 120 */ | |
| 121 | |
| 122 NSPR_API(void) PR_FD_ZERO(PR_fd_set *set); | |
| 123 NSPR_API(void) PR_FD_SET(PRFileDesc *fd, PR_fd_set *set); | |
| 124 NSPR_API(void) PR_FD_CLR(PRFileDesc *fd, PR_fd_set *set); | |
| 125 NSPR_API(PRInt32) PR_FD_ISSET(PRFileDesc *fd, PR_fd_set *set); | |
| 126 NSPR_API(void) PR_FD_NSET(PROsfd osfd, PR_fd_set *set); | |
| 127 NSPR_API(void) PR_FD_NCLR(PROsfd osfd, PR_fd_set *set); | |
| 128 NSPR_API(PRInt32) PR_FD_NISSET(PROsfd osfd, PR_fd_set *set); | |
| 129 | |
| 130 /* | |
| 131 ** The next two entry points should not be in the API, but they are | |
| 132 ** declared here for historical reasons. | |
| 133 */ | |
| 134 | |
| 135 NSPR_API(PRInt32) PR_GetSysfdTableMax(void); | |
| 136 | |
| 137 NSPR_API(PRInt32) PR_SetSysfdTableSize(PRIntn table_size); | |
| 138 | |
| 139 #ifndef NO_NSPR_10_SUPPORT | |
| 140 #include <sys/stat.h> | |
| 141 | |
| 142 NSPR_API(PRInt32) PR_Stat(const char *path, struct stat *buf); | |
| 143 #endif /* NO_NSPR_10_SUPPORT */ | |
| 144 | |
| 145 PR_END_EXTERN_C | |
| 146 | |
| 147 #endif /* defined(PROBSLET_H) */ | |
| 148 | |
| 149 /* probslet.h */ | |
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Chromium Code Reviews
Issue 2078763002:
Delete bundled copy of NSS and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/nss@master