cirno/plan9port
1
0
Fork 0
mirror of https://github.com/9fans/plan9port.git synced 2025-01-12 11:10:07 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

libthread: make pthreadperthread the default

Browse source
This commit is contained in:
Russ Cox 2020-12-30 00:16:10 -05:00
parent b73633b1b4
commit e68f07d46f
2 changed files with 15 additions and 21 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

34
man/man3/thread.3
View file

@ -158,27 +158,21 @@ by
The thread library provides a
.I main
function that sets up a proc with a single thread executing
.I threadmain
on a stack of size
.I mainstacksize
(default eight kilobytes).
To set
.IR mainstacksize ,
declare a global variable
initialized to the desired value
.RI ( e.g. ,
.B int
.B mainstacksize
.B =
.BR 1024 ).
When using the
.IR threadmain .
.PP
Every thread is backed by an operating system-provided
.I pthread
library,
.B mainstacksize
is ignored, as is the stack size argument to
.BR proccreate :
the first thread in each proc
runs on the native system stack.
and runs on its system-provided stack;
.I mainstacksize
and the the stack size arguments to
.I proccreate
and
.I threadcreate
are ignored.
Although each thread is backed by a separate
.IR pthread ,
the threads in a proc are still scheduled non-preemptively
as on Plan 9 and as described below.
.PP
.I Threadcreate
creates a new thread in the calling proc, returning a unique integer

2
src/libthread/thread.c
View file

@ -7,7 +7,7 @@ static uint threadnsysproc;
static Lock threadnproclock;
static Ref threadidref;
static Proc *threadmainproc;
static int pthreadperthread;
static int pthreadperthread = 1;
static void addproc(Proc*);
static void delproc(Proc*);