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Patch 5107 from Steve Bavin, enable locking on sdl sim, now mutexes actually MUT EX on the SDL sim

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@9638 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Brandon Low 2006-04-12 15:38:56 +00:00
parent 1b18dd0f17
commit 9cde77060a
2 changed files with 8 additions and 4 deletions
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1
docs/CREDITS
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@ -197,3 +197,4 @@ Rani Hod
Tom Ross Tom Ross
Anton Romanov Anton Romanov
Jean-Luc Ohl Jean-Luc Ohl
Steve Bavin

11
uisimulator/sdl/kernel.c
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@ -150,18 +150,21 @@ int tick_remove_task(void (*f)(void))
return -1; return -1;
} }
/* TODO: Implement mutexes for win32 */ /* Very simple mutex simulation - won't work with pre-emptive
multitasking, but is better than nothing at all */
void mutex_init(struct mutex *m) void mutex_init(struct mutex *m)
{ {
(void)m; m->locked = false;
} }
void mutex_lock(struct mutex *m) void mutex_lock(struct mutex *m)
{ {
(void)m; while(m->locked)
switch_thread();
m->locked = true;
} }
void mutex_unlock(struct mutex *m) void mutex_unlock(struct mutex *m)
{ {
(void)m; m->locked = false;
} }