class signal_h(c.Test):
header = c.header_test('signal.h')
sig_atomic_t = c.type_test()
SIG_DFL = c.macro_test()
SIG_ERR = c.macro_test()
SIG_IGN = c.macro_test()
SIGABRT = c.macro_test()
SIGFPE = c.macro_test()
SIGILL = c.macro_test()
SIGINT = c.macro_test()
SIGSEGV = c.macro_test()
SIGTERM = c.macro_test()
signal = c.function_test(c.Function('void', 'int'),
'int',
c.Function('void', 'int'),
test='''
#include <signal.h>
void foo(int x) {}
int main() {
void (*f)(int) = signal(SIGTERM, foo);
return 0;
}
''')
raise_ = c.function_test('int',
'int',
name='raise',
test='''
#include <signal.h>
int main() {
signal(SIGTERM, SIG_IGN);
return raise(SIGTERM) == 0 ? 0 : 1;
}
''')
def strerror_r(self):
if not self.header:
return None
# Some implementations return a char* of the message.
self.ctx.logger.check("checking strerror_r in 'string.h'")
if self.builder.try_run('''
#include <string.h>
int main() {
char b[50];
int r = strerror_r(0, b, 50);
return r == 0 ? 0 : 1;
}
'''):
self.ctx.logger.passed()
return c.Function('int', 'int', 'char*', 'size_t')
if self.builder.try_run('''
#include <string.h>
int main() {
char b[50];
char* r = strerror_r(0, b, 50);
return 0;
}
'''):
self.ctx.logger.passed()
return c.Function('char*', 'int', 'char*', 'size_t')
self.ctx.logger.failed()
def fopen(self):
with tempfile.NamedTemporaryFile() as f:
test = '''
#include <errno.h>
#include <stdio.h>
int main() {
FILE* f;
fpos_t p;
if (!(f = fopen("%s", "r"))) return 1;
if (ftell(f) != 0) return 1;
if (fgetpos(f, &p) != 0) return 1;
if (fseek(f, 1L, SEEK_CUR) != 0) return 1;
if (ftell(f) != 1) return 1;
if (fsetpos(f, &p) != 0) return 1;
if (ftell(f) != 0) return 1;
if (fflush(NULL) != 0) return 1;
if (!(f = freopen(NULL, "r", f))) return 1;
errno = 0;
rewind(f);
if (errno) return 1;
if (ferror(f) != 0) return 1;
if (feof(f) != 0) return 1;
if (fclose(f) != 0) return 1;
return 0;
}
''' % f.name
if self.builder.check_run(test, "checking fopen in 'stdio.h'"):
return c.Function('FILE*', 'const char*', 'const char*')
def abort(self):
self.ctx.logger.check("checking abort in 'stdlib.h'")
with self.builder.tempfile('''
#include <stdlib.h>
#ifdef _WIN32
#include <windows.h>
#endif
int main() {
#ifdef _WIN32
/* Turn off the windows error box */
DWORD dwMode = SetErrorMode(SEM_NOGPFAULTERRORBOX);
SetErrorMode(dwMode | SEM_NOGPFAULTERRORBOX);
#endif
abort();
return 0;
}
''') as src:
dst = src.parent / 'temp'
try:
obj = self.builder.uncached_compile(src, quieter=1)
exe = self.builder.uncached_link_exe(dst, [obj], quieter=1)
except fbuild.ExecutionError:
pass
else:
try:
self.builder.ctx.execute([exe], quieter=1)
except fbuild.ExecutionError as e:
self.ctx.logger.passed()
return c.Function('void', 'void')
self.ctx.logger.failed()
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.header = 'sys/socket.h'
self.socklen_t = c.IntType(4, 4, False)
self.sa_family_t = c.IntType(1, 1, False)
self.accept = c.Function('int', 'int', 'struct sockaddr*',
'socklen_t*')
def dlopen(self):
if not self.header:
return
lib_code = '''
#ifdef __cplusplus
extern "C" {
#endif
int fred(int argc, char** argv) { return 0; }
#ifdef __cplusplus
}
#endif
'''
exe_code = '''
#include <dlfcn.h>
#include <stdlib.h>
int main(int argc, char** argv) {
void* lib = dlopen("%s", RTLD_NOW);
void* fred = 0;
if(!lib) return 1;
fred = dlsym(lib,"fred");
if(!fred) return 1;
return dlclose(lib) == 0 ? 0 : 1;
}
'''
self.ctx.logger.check("checking dlopen in 'dlfcn.h'")
with fbuild.temp.tempfile(lib_code,
self.builder.src_suffix) as lib_src:
try:
obj = self.shared.uncached_compile(lib_src, quieter=1)
lib = self.shared.uncached_link_lib(lib_src.parent / 'temp',
[obj],
quieter=1)
except fbuild.ExecutionError:
pass
else:
if self.builder.try_run(exe_code % lib,
lkwargs={
'flags': self.flags,
'libpaths': self.libpaths,
'libs': self.libs,
'external_libs': self.external_libs
},
quieter=1):
self.ctx.logger.passed()
return c.Function('void*', 'const char*', 'int')
self.ctx.logger.failed()
return None
def signal(self):
if not self.header:
return None
# Some implementations don't follow the standard and use "int" as the
# return type of the signal functions.
self.ctx.logger.check("checking signal in 'signal.h'")
if not self.builder.try_run('''
#include <signal.h>
void foo(int x) {}
int main() {
void (*f)(int) = signal(SIGTERM, foo);
return 0;
}
'''):
self.ctx.logger.failed()
return None
if self.builder.try_run('''
#include <signal.h>
void foo(int x) {}
int main() {
return *(signal (0, 0)) (0) == 1;
}
'''):
self.ctx.logger.passed('ok int')
return c.Function(c.Function('int', 'int'), 'int',
c.Function('int', 'int'))
else:
self.ctx.logger.passed('ok void')
return c.Function(c.Function('void', 'int'), 'int',
c.Function('void', 'int'))
def setsockopt(self):
if not self.header:
return
if self.socklen_t:
return super().setsockopt
# Some old implementations use 'int' or 'unsigned int' instead of
# socklen_t.
self.ctx.logger.check("checking setsockopt in 'sys/socket.h'")
for typename in 'unsigned int*', 'int*':
if self.builder.try_run('''
#include <sys/socket.h>
int (*x)(int, int, int, const void*, %s) = setsockopt;
int main() { return 0; }
''' % typename):
self.ctx.logger.passed()
return c.Function('int', 'int', 'int', 'const void*', typename)
self.ctx.logger.failed()
def getpeername(self):
if not self.header:
return
if self.socklen_t:
return super().getpeername
# Some old implementations use 'int' or 'unsigned int' instead of
# socklen_t.
self.ctx.logger.check("checking getpeername in 'sys/socket.h'")
for typename in 'unsigned int*', 'int*':
if self.builder.try_run('''
#include <sys/socket.h>
int (*x)(int, struct sockaddr*, %s) = getpeername;
int main() { return 0; }
''' % typename):
self.ctx.logger.passed()
return c.Function('int', 'int', 'struct sockaddr*', typename)
self.ctx.logger.failed()
def recvfrom(self):
if not self.header:
return
if self.socklen_t:
return super().recvfrom
# Some old implementations use 'int' or 'unsigned int' instead of
# socklen_t.
self.ctx.logger.check("checking recvfrom in 'sys/socket.h'")
for typename in 'unsigned int*', 'int*':
if self.builder.try_run('''
#include <sys/socket.h>
ssize_t (*x)(int, void*, size_t, int, struct sockaddr*, %s) = recvfrom;
int main() { return 0; }
''' % typename):
self.ctx.logger.passed()
return c.Function('ssize_t', 'int', 'void*', 'size_t', 'int',
'struct sockaddr*', typename)
self.ctx.logger.failed()
def fsetpos(self):
if self.fopen:
return c.Function('int', 'FILE*', 'const fpos_t*', 'fsetpos')
def fseek(self):
if self.fopen:
return c.Function('int', 'FILE*', 'long int', 'int', 'fseek')
def freopen(self):
if self.fopen:
return c.Function('FILE*', 'const char*', 'const char*', 'FILE*')
def pthread_cond_wait(self):
if self.pthread_cond_init:
return c.Function('int', 'pthread_cond_t*', 'pthread_mutex_t*')
def ferror(self):
if self.fopen:
return c.Function('int', 'FILE*')
def pthread_cond_signal(self):
if self.pthread_cond_init:
return c.Function('int', 'pthread_cond_t*')
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.header = 'dlfcn.h'
self.flags = []
self.dlopen = c.Function('void*', 'const char*', 'int')
def pthread_spin_trylock(self):
if self.pthread_spin_init:
return c.Function('int', 'pthread_spinlock_t*')
def pthread_rwlock_wrlock(self):
if self.pthread_rwlock_init:
return c.Function('int', 'pthread_rwlock_t*')
def pthread_mutex_unlock(self):
if self.pthread_mutex_init:
return c.Function('int', 'pthread_mutex_t*')
def pthread_mutex_destroy(self):
if self.pthread_mutex_init:
return c.Function('int', 'pthread_mutex_t*')
def ftell(self):
if self.fopen:
return c.Function('long int', 'FILE*', 'ftell')
def rewind(self):
if self.fopen:
return c.Function('void', 'FILE*', 'rewind')
def pthread_attr_setdetachstate(self):
if self.pthread_create:
return c.Function('int', 'pthread_attr_t*', 'int')
def pthread_barrier_wait(self):
if self.pthread_barrier_init:
return c.Function('int', 'pthread_barrier_t*')
def pthread_cond_destroy(self):
if self.pthread_cond_init:
return c.Function('int', 'pthread_cond_t*')
def fclose(self):
if self.fopen:
return c.Function('int', 'FILE*')
def pthread_cond_broadcast(self):
if self.pthread_cond_init:
return c.Function('int', 'pthread_cond_t*')
def setjmp(self):
if self.longjmp:
return c.Function('int', 'jmp_buf')
def pthread_cond_timedwait(self):
if self.pthread_cond_init:
return c.Function('int', 'pthread_cond_t*', 'pthread_mutex_t*',
'const struct timespec*')