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queue signalled: make libvillas compile if eventfd is not available/ activated; add a switch in CMake file to deactivate eventfd independant of availability in OS

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This commit is contained in:
Sonja Kolen 2018-08-08 08:53:36 +02:00
parent 650af44620
commit 5f11bd5a19
2 changed files with 12 additions and 2 deletions
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7
CMakeLists.txt
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@ -63,7 +63,12 @@ else()
endif()
# Check OS
check_include_file("sys/eventfd.h" HAS_EVENTFD)
# Use the switch NO_EVENTFD to deactivate eventfd usage indepentent of availability on OS
if(NOT ${NO_EVENTFD} MATCHES "1")
check_include_file("sys/eventfd.h" HAS_EVENTFD)
else()
set(HAS_EVENTFD 0)
endif()
check_include_file("semaphore.h" HAS_SEMAPHORE)
check_include_file("sys/mman.h" HAS_MMAN)

7
lib/queue_signalled.c
View file

@ -47,8 +47,13 @@ int queue_signalled_init(struct queue_signalled *qs, size_t size, struct memory_
#ifdef __linux__
if (flags & QUEUE_SIGNALLED_PROCESS_SHARED)
qs->mode = QUEUE_SIGNALLED_PTHREAD;
else
else {
#ifdef HAS_EVENTFD
qs->mode = QUEUE_SIGNALLED_EVENTFD;
#else
qs->mode = QUEUE_SIGNALLED_PTHREAD;
#endif
}
#elif defined(__APPLE__)
if (flags & QUEUE_SIGNALLED_PROCESS_SHARED)
qs->mode = QUEUE_SIGNALLED_PTHREAD;