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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# Write out processes data for C++. The processes are defined
# in a file provided as a command-line argument.
import collections
import sys
from mozparsers.shared_telemetry_utils import ParserError, load_yaml_file
# The banner/text at the top of the generated file.
banner = """/* This file is auto-generated from Telemetry build scripts,
see gen_process_data.py. */
"""
file_header = """\
#ifndef mozilla_TelemetryProcessData_h
#define mozilla_TelemetryProcessData_h
#include "mozilla/TelemetryProcessEnums.h"
namespace mozilla {
namespace Telemetry {
"""
file_footer = """
} // namespace Telemetry
} // namespace mozilla
#endif // mozilla_TelemetryProcessData_h"""
def to_enum_label(name):
return name.title().replace("_", "")
def write_processes_data(processes, output):
def p(line):
print(line, file=output)
processes = collections.OrderedDict(processes)
p("static GeckoProcessType ProcessIDToGeckoProcessType[%d] = {" % len(processes))
for i, (name, value) in enumerate(sorted(processes.items())):
p(
" /* %d: ProcessID::%s = */ %s,"
% (i, to_enum_label(name), value["gecko_enum"])
)
p("};")
p("")
p("#if defined(_MSC_VER) && !defined(__clang__)")
p("static const char* const ProcessIDToString[%d] = {" % len(processes))
p("#else")
p("static constexpr const char* ProcessIDToString[%d] = {" % len(processes))
p("#endif")
for i, (name, value) in enumerate(sorted(processes.items())):
p(' /* %d: ProcessID::%s = */ "%s",' % (i, to_enum_label(name), name))
p("};")
def main(output, *filenames):
if len(filenames) > 1:
raise Exception("We don't support loading from more than one file.")
try:
processes = load_yaml_file(filenames[0])
# Write the process data file.
print(banner, file=output)
print(file_header, file=output)
write_processes_data(processes, output)
print(file_footer, file=output)
except ParserError as ex:
print("\nError generating processes data:\n" + str(ex) + "\n")
sys.exit(1)
if __name__ == "__main__":
main(sys.stdout, *sys.argv[1:])