nsprpub/pr/tests/primblok.c@4ab42b5ab56c (annotated)
nsprpub/pr/tests/primblok.c
Wed, 31 Dec 2014 07:53:36 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 07:53:36 +0100
- branch
- TOR_BUG_3246
- changeset 5
- 4ab42b5ab56c
- permissions
- -rw-r--r--
Correct small whitespace inconsistency, lost while renaming variables.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| 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 | /* |
| michael@0 | 7 | * File: primblok.c |
| michael@0 | 8 | * Purpose: testing whether the primordial thread can block in a |
| michael@0 | 9 | * native blocking function without affecting the correct |
| michael@0 | 10 | * functioning of NSPR I/O functions (Bugzilla bug #30746) |
| michael@0 | 11 | */ |
| michael@0 | 12 | |
| michael@0 | 13 | #if !defined(WINNT) |
| michael@0 | 14 | |
| michael@0 | 15 | #include <stdio.h> |
| michael@0 | 16 | |
| michael@0 | 17 | int main(int argc, char **argv) |
| michael@0 | 18 | { |
| michael@0 | 19 | printf("This test is not relevant on this platform\n"); |
| michael@0 | 20 | return 0; |
| michael@0 | 21 | } |
| michael@0 | 22 | |
| michael@0 | 23 | #else /* WINNT */ |
| michael@0 | 24 | |
| michael@0 | 25 | #include "nspr.h" |
| michael@0 | 26 | |
| michael@0 | 27 | #include <windows.h> |
| michael@0 | 28 | #include <stdio.h> |
| michael@0 | 29 | #include <stdlib.h> |
| michael@0 | 30 | #include <string.h> |
| michael@0 | 31 | |
| michael@0 | 32 | #define TEST_FILE_NAME "primblok.dat" |
| michael@0 | 33 | |
| michael@0 | 34 | /* use InterlockedExchange to update this variable */ |
| michael@0 | 35 | static LONG iothread_done; |
| michael@0 | 36 | |
| michael@0 | 37 | static void PR_CALLBACK IOThread(void *arg) |
| michael@0 | 38 | { |
| michael@0 | 39 | PRFileDesc *fd; |
| michael@0 | 40 | char buf[32]; |
| michael@0 | 41 | PRInt32 nbytes; |
| michael@0 | 42 | |
| michael@0 | 43 | /* Give the primordial thread one second to block */ |
| michael@0 | 44 | Sleep(1000); |
| michael@0 | 45 | |
| michael@0 | 46 | /* |
| michael@0 | 47 | * See if our PR_Write call will hang when the primordial |
| michael@0 | 48 | * thread is blocking in a native blocking function. |
| michael@0 | 49 | */ |
| michael@0 | 50 | fd = PR_Open(TEST_FILE_NAME, PR_WRONLY|PR_CREATE_FILE, 0666); |
| michael@0 | 51 | if (NULL == fd) { |
| michael@0 | 52 | fprintf(stderr, "PR_Open failed\n"); |
| michael@0 | 53 | exit(1); |
| michael@0 | 54 | } |
| michael@0 | 55 | memset(buf, 0xaf, sizeof(buf)); |
| michael@0 | 56 | fprintf(stderr, "iothread: calling PR_Write\n"); |
| michael@0 | 57 | nbytes = PR_Write(fd, buf, sizeof(buf)); |
| michael@0 | 58 | fprintf(stderr, "iothread: PR_Write returned\n"); |
| michael@0 | 59 | if (nbytes != sizeof(buf)) { |
| michael@0 | 60 | fprintf(stderr, "PR_Write returned %d\n", nbytes); |
| michael@0 | 61 | exit(1); |
| michael@0 | 62 | } |
| michael@0 | 63 | if (PR_Close(fd) == PR_FAILURE) { |
| michael@0 | 64 | fprintf(stderr, "PR_Close failed\n"); |
| michael@0 | 65 | exit(1); |
| michael@0 | 66 | } |
| michael@0 | 67 | if (PR_Delete(TEST_FILE_NAME) == PR_FAILURE) { |
| michael@0 | 68 | fprintf(stderr, "PR_Delete failed\n"); |
| michael@0 | 69 | exit(1); |
| michael@0 | 70 | } |
| michael@0 | 71 | |
| michael@0 | 72 | /* Tell the main thread that we are done */ |
| michael@0 | 73 | InterlockedExchange(&iothread_done, 1); |
| michael@0 | 74 | } |
| michael@0 | 75 | |
| michael@0 | 76 | int main(int argc, char **argv) |
| michael@0 | 77 | { |
| michael@0 | 78 | PRThread *iothread; |
| michael@0 | 79 | |
| michael@0 | 80 | /* Must be a global thread */ |
| michael@0 | 81 | iothread = PR_CreateThread( |
| michael@0 | 82 | PR_USER_THREAD, IOThread, NULL, PR_PRIORITY_NORMAL, |
| michael@0 | 83 | PR_GLOBAL_THREAD, PR_JOINABLE_THREAD, 0); |
| michael@0 | 84 | if (iothread == NULL) { |
| michael@0 | 85 | fprintf(stderr, "cannot create thread\n"); |
| michael@0 | 86 | exit(1); |
| michael@0 | 87 | } |
| michael@0 | 88 | |
| michael@0 | 89 | /* |
| michael@0 | 90 | * Block in a native blocking function. |
| michael@0 | 91 | * Give iothread 5 seconds to finish its task. |
| michael@0 | 92 | */ |
| michael@0 | 93 | Sleep(5000); |
| michael@0 | 94 | |
| michael@0 | 95 | /* |
| michael@0 | 96 | * Is iothread done or is it hung? |
| michael@0 | 97 | * |
| michael@0 | 98 | * I'm actually only interested in reading the value |
| michael@0 | 99 | * of iothread_done. I'm using InterlockedExchange as |
| michael@0 | 100 | * a thread-safe way to read iothread_done. |
| michael@0 | 101 | */ |
| michael@0 | 102 | if (InterlockedExchange(&iothread_done, 1) == 0) { |
| michael@0 | 103 | fprintf(stderr, "iothread is hung\n"); |
| michael@0 | 104 | fprintf(stderr, "FAILED\n"); |
| michael@0 | 105 | exit(1); |
| michael@0 | 106 | } |
| michael@0 | 107 | |
| michael@0 | 108 | if (PR_JoinThread(iothread) == PR_FAILURE) { |
| michael@0 | 109 | fprintf(stderr, "PR_JoinThread failed\n"); |
| michael@0 | 110 | exit(1); |
| michael@0 | 111 | } |
| michael@0 | 112 | printf("PASSED\n"); |
| michael@0 | 113 | return 0; |
| michael@0 | 114 | } /* main */ |
| michael@0 | 115 | |
| michael@0 | 116 | #endif /* WINNT */ |
