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The dependency on the ucontext functions has the potential to keep others from successfully using cpu/native for other platforms. As the Contiki multithreading library typically isn't used at all it's not worth the trouble. So we just limit it to Windows and Linux - where it is known to not only build but actually work. If someone needs the Contiki cpu/native multithreading library on another platform he's certainly welcome to add that platform - hopefully by just activating the codepath that we now made exclusive for Linux for his platform.

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This commit is contained in:
Oliver Schmidt 2011-11-30 23:41:39 +01:00
parent 8edd86da5e
commit e38f008b9b
1 changed files with 10 additions and 10 deletions
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20
cpu/native/mtarch.c
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@ -40,7 +40,7 @@
static void *main_fiber; static void *main_fiber;
#else /* _WIN32 || __CYGWIN__ */ #elif defined(__linux)
#include <stdlib.h> #include <stdlib.h>
#include <signal.h> #include <signal.h>
@ -54,7 +54,7 @@ struct mtarch_t {
static ucontext_t main_context; static ucontext_t main_context;
static ucontext_t *running_context; static ucontext_t *running_context;
#endif /* _WIN32 || __CYGWIN__ */ #endif /* _WIN32 || __CYGWIN__ || __linux */
#include "mtarch.h" #include "mtarch.h"
@ -88,7 +88,7 @@ mtarch_start(struct mtarch_thread *thread,
thread->mt_thread = CreateFiber(0, (LPFIBER_START_ROUTINE)function, data); thread->mt_thread = CreateFiber(0, (LPFIBER_START_ROUTINE)function, data);
#else /* _WIN32 || __CYGWIN__ */ #elif defined(__linux)
thread->mt_thread = malloc(sizeof(struct mtarch_t)); thread->mt_thread = malloc(sizeof(struct mtarch_t));
@ -118,7 +118,7 @@ mtarch_start(struct mtarch_thread *thread,
makecontext(&((struct mtarch_t *)thread->mt_thread)->context, makecontext(&((struct mtarch_t *)thread->mt_thread)->context,
(void (*)(void))function, 1, data); (void (*)(void))function, 1, data);
#endif /* _WIN32 || __CYGWIN__ */ #endif /* _WIN32 || __CYGWIN__ || __linux */
} }
/*--------------------------------------------------------------------------*/ /*--------------------------------------------------------------------------*/
void void
@ -128,11 +128,11 @@ mtarch_yield(void)
SwitchToFiber(main_fiber); SwitchToFiber(main_fiber);
#else /* _WIN32 || __CYGWIN__ */ #elif defined(__linux)
swapcontext(running_context, &main_context); swapcontext(running_context, &main_context);
#endif /* _WIN32 || __CYGWIN__ */ #endif /* _WIN32 || __CYGWIN__ || __linux */
} }
/*--------------------------------------------------------------------------*/ /*--------------------------------------------------------------------------*/
void void
@ -142,13 +142,13 @@ mtarch_exec(struct mtarch_thread *thread)
SwitchToFiber(thread->mt_thread); SwitchToFiber(thread->mt_thread);
#else /* _WIN32 || __CYGWIN__ */ #elif defined(__linux)
running_context = &((struct mtarch_t *)thread->mt_thread)->context; running_context = &((struct mtarch_t *)thread->mt_thread)->context;
swapcontext(&main_context, running_context); swapcontext(&main_context, running_context);
running_context = NULL; running_context = NULL;
#endif /* _WIN32 || __CYGWIN__ */ #endif /* _WIN32 || __CYGWIN__ || __linux */
} }
/*--------------------------------------------------------------------------*/ /*--------------------------------------------------------------------------*/
void void
@ -158,11 +158,11 @@ mtarch_stop(struct mtarch_thread *thread)
DeleteFiber(thread->mt_thread); DeleteFiber(thread->mt_thread);
#else /* _WIN32 || __CYGWIN__ */ #elif defined(linux) || defined(__linux)
free(thread->mt_thread); free(thread->mt_thread);
#endif /* _WIN32 || __CYGWIN__ */ #endif /* _WIN32 || __CYGWIN__ || __linux */
} }
/*--------------------------------------------------------------------------*/ /*--------------------------------------------------------------------------*/
void void