gwj / at91sam9263 · Commits

Commit 4870852c9e5c92d1e94afddbee607e578e226fae

Authored by aliguori
1 parent 8edac960

qemu: introduce lock/unlock_iothread (Marcelo Tosatti) 

Hook to allow iothread to drop the global mutex.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7244 c046a42c-6fe2-441c-8c8c-71466251a162
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Showing 1 changed file with 5 additions and 0 deletions
@@ -3750,6 +3750,9 @@ void qemu_cpu_kick(void *env) @@ -3750,6 +3750,9 @@ void qemu_cpu_kick(void *env)
3750 return; 3750 return;
3751 } 3751 }
3752 3752
  3753 +#define qemu_mutex_lock_iothread() do { } while (0)
  3754 +#define qemu_mutex_unlock_iothread() do { } while (0)
  3755 +
3753 #ifdef _WIN32 3756 #ifdef _WIN32
3754 static void host_main_loop_wait(int *timeout) 3757 static void host_main_loop_wait(int *timeout)
3755 { 3758 {
@@ -3842,7 +3845,9 @@ void main_loop_wait(int timeout) @@ -3842,7 +3845,9 @@ void main_loop_wait(int timeout)
3842 slirp_select_fill(&nfds, &rfds, &wfds, &xfds); 3845 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
3843 } 3846 }
3844 #endif 3847 #endif
  3848 + qemu_mutex_unlock_iothread();
3845 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv); 3849 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
  3850 + qemu_mutex_lock_iothread();
3846 if (ret > 0) { 3851 if (ret > 0) {
3847 IOHandlerRecord **pioh; 3852 IOHandlerRecord **pioh;
3848 3853