beremiz

Added runtime/spawn_subprocess.py. Force use posix spawn instead of fork, with API similar to subprocess. Using fork in runtime is incompatible with Xenomai, because memory is locked and this can lead to out of memory error.

2018-10-23, Edouard Tisserant
7ce4e5cf6339
Added runtime/spawn_subprocess.py. Force use posix spawn instead of fork, with API similar to subprocess. Using fork in runtime is incompatible with Xenomai, because memory is locked and this can lead to out of memory error.
# the platform name (PyV8, smjs, Mozilla, IE6, Opera, Safari etc.)
platform = '' # to be updated by app, on compile
# a dictionary of module override names (platform-specific)
overrides = {} # to be updated by app, on compile
# the remote path for loading modules
loadpath = None
stacktrace = None
appname = None
def setloadpath(lp):
global loadpath
loadpath = lp
def setappname(an):
global appname
appname = an
def getloadpath():
return loadpath
def addoverride(module_name, path):
overrides[module_name] = path
def addstack(linedebug):
JS("""
if (pyjslib.bool((sys.stacktrace === null))) {
sys.stacktrace = new pyjslib.List([]);
}
sys.stacktrace.append(linedebug);
""")
def popstack():
JS("""
sys.stacktrace.pop()
""")
def printstack():
JS("""
var res = '';
var __l = sys.stacktrace.__iter__();
try {
while (true) {
var l = __l.next();
res += ( l + '\\n' ) ;
}
} catch (e) {
if (e != pyjslib.StopIteration) {
throw e;
}
}
return res;
""")