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Overview
| Comment: | Document that multi-threading is on by default since 8.6 |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
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2e7826da11ab4313438cd4a96056fb80 |
| User & Date: | jan.nijtmans 2015-09-04 12:23:18 |
Context
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2015-09-21
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| 18:50 | [d7ea9f985][a3c3508599] Internal regexp fixes that cleanup and streamline. check-in: 7e49ffdb09 user: dgp tags: trunk | |
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2015-09-05
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| 20:10 | Merge trunk. "paranoia" patch for the notifier, making sure that thread local data from invalid thr... check-in: d8fd974ade user: jan.nijtmans tags: bug-5d170b5ca5 | |
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2015-09-04
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| 12:23 | Document that multi-threading is on by default since 8.6 check-in: 2e7826da11 user: jan.nijtmans tags: trunk | |
| 07:23 | Remove unnecessary end-of-line spacing (preparing for some further documentation updates) check-in: a5205fe3c8 user: jan.nijtmans tags: trunk | |
Changes
Changes to doc/Thread.3.
1 2 3 4 5 6 | '\" '\" Copyright (c) 1999 Scriptics Corporation '\" Copyright (c) 1998 Sun Microsystems, Inc. '\" '\" See the file "license.terms" for information on usage and redistribution '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES. | | | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 | '\" '\" Copyright (c) 1999 Scriptics Corporation '\" Copyright (c) 1998 Sun Microsystems, Inc. '\" '\" See the file "license.terms" for information on usage and redistribution '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES. '\" .TH Threads 3 "8.1" Tcl "Tcl Library Procedures" .so man.macros .BS .SH NAME Tcl_ConditionNotify, Tcl_ConditionWait, Tcl_ConditionFinalize, Tcl_GetThreadData, Tcl_MutexLock, Tcl_MutexUnlock, Tcl_MutexFinalize, Tcl_CreateThread, Tcl_JoinThread \- Tcl thread support .SH SYNOPSIS .nf |
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75 76 77 78 79 80 81 | .AP int *result out The referred storage is used to place the exit code of the thread waited upon into it. .BE .SH INTRODUCTION Beginning with the 8.1 release, the Tcl core is thread safe, which allows you to incorporate Tcl into multithreaded applications without | | > | | | 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 | .AP int *result out The referred storage is used to place the exit code of the thread waited upon into it. .BE .SH INTRODUCTION Beginning with the 8.1 release, the Tcl core is thread safe, which allows you to incorporate Tcl into multithreaded applications without customizing the Tcl core. Starting with the 8.6 release, Tcl multithreading support is on by default. To disable Tcl multithreading support, you must include the \fB\-\|\-disable-threads\fR option to \fBconfigure\fR when you configure and compile your Tcl core. .PP An important constraint of the Tcl threads implementation is that \fIonly the thread that created a Tcl interpreter can use that interpreter\fR. In other words, multiple threads can not access the same Tcl interpreter. (However, a single thread can safely create and use multiple interpreters.) .SH DESCRIPTION |
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122 123 124 125 126 127 128 | thread which already exited is possible, the system will retain the necessary information until after the call to \fBTcl_JoinThread\fR. This means that not calling \fBTcl_JoinThread\fR for a joinable thread will cause a memory leak. .PP The \fBTcl_GetThreadData\fR call returns a pointer to a block of thread-private data. Its argument is a key that is shared by all threads | | | 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 | thread which already exited is possible, the system will retain the necessary information until after the call to \fBTcl_JoinThread\fR. This means that not calling \fBTcl_JoinThread\fR for a joinable thread will cause a memory leak. .PP The \fBTcl_GetThreadData\fR call returns a pointer to a block of thread-private data. Its argument is a key that is shared by all threads and a size for the block of storage. The storage is automatically allocated and initialized to all zeros the first time each thread asks for it. The storage is automatically deallocated by \fBTcl_FinalizeThread\fR. .SS "SYNCHRONIZATION AND COMMUNICATION" Tcl provides \fBTcl_ThreadQueueEvent\fR and \fBTcl_ThreadAlert\fR for handling event queuing in multithreaded applications. See the \fBNotifier\fR manual page for more information on these procedures. .PP |
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