Initial gevent support

Because some cpp code ends up leaking into cython, we change
the cython generator to generate cpp code.

5 files changed, 81 insertions, 50 deletions

diff --git a/tools/run_tests/helper_scripts/build_python.sh b/tools/run_tests/helper_scripts/build_python.sh
index b809fe012f..dac29b91dd 100755
--- a/tools/run_tests/helper_scripts/build_python.sh
+++ b/tools/run_tests/helper_scripts/build_python.sh
@@ -152,6 +152,12 @@ pip_install_dir() {
   cd "$PWD"
 }
 
+case "$VENV" in
+  *gevent*)
+  $VENV_PYTHON -m pip install gevent
+  ;;
+esac
+
 $VENV_PYTHON -m pip install --upgrade pip==9.0.1
 $VENV_PYTHON -m pip install setuptools
 $VENV_PYTHON -m pip install cython
diff --git a/tools/run_tests/helper_scripts/run_python.sh b/tools/run_tests/helper_scripts/run_python.sh
index bcfe3a6577..2b7321e527 100755
--- a/tools/run_tests/helper_scripts/run_python.sh
+++ b/tools/run_tests/helper_scripts/run_python.sh
@@ -22,7 +22,7 @@ PYTHON=$(realpath "${1:-py27/bin/python}")
 
 ROOT=$(pwd)
 
-$PYTHON "$ROOT/src/python/grpcio_tests/setup.py" test_lite
+$PYTHON "$ROOT/src/python/grpcio_tests/setup.py" "$2"
 
 mkdir -p "$ROOT/reports"
 rm -rf "$ROOT/reports/python-coverage"
diff --git a/tools/run_tests/run_interop_tests.py b/tools/run_tests/run_interop_tests.py
index ba4ab3bd36..970b0d7902 100755
--- a/tools/run_tests/run_interop_tests.py
+++ b/tools/run_tests/run_interop_tests.py
@@ -545,13 +545,13 @@ class PythonLanguage:
 
     def client_cmd(self, args):
         return [
-            'py27/bin/python', 'src/python/grpcio_tests/setup.py',
+            'py27_native/bin/python', 'src/python/grpcio_tests/setup.py',
             'run_interop', '--client', '--args="{}"'.format(' '.join(args))
         ]
 
     def client_cmd_http2interop(self, args):
         return [
-            'py27/bin/python',
+            'py27_native/bin/python',
             'src/python/grpcio_tests/tests/http2/negative_http2_client.py',
         ] + args
 
@@ -560,7 +560,7 @@ class PythonLanguage:
 
     def server_cmd(self, args):
         return [
-            'py27/bin/python', 'src/python/grpcio_tests/setup.py',
+            'py27_native/bin/python', 'src/python/grpcio_tests/setup.py',
             'run_interop', '--server', '--args="{}"'.format(' '.join(args))
         ]
 
diff --git a/tools/run_tests/run_tests.py b/tools/run_tests/run_tests.py
index 85c7f5c4dc..4146eec42d 100755
--- a/tools/run_tests/run_tests.py
+++ b/tools/run_tests/run_tests.py
@@ -204,19 +204,28 @@ def _is_use_docker_child():
 
 
 _PythonConfigVars = collections.namedtuple('_ConfigVars', [
-    'shell', 'builder', 'builder_prefix_arguments', 'venv_relative_python',
-    'toolchain', 'runner'
+    'shell',
+    'builder',
+    'builder_prefix_arguments',
+    'venv_relative_python',
+    'toolchain',
+    'runner',
+    'test_name',
+    'iomgr_platform',
 ])
 
 
 def _python_config_generator(name, major, minor, bits, config_vars):
+    name += '_' + config_vars.iomgr_platform
     return PythonConfig(
         name, config_vars.shell + config_vars.builder +
         config_vars.builder_prefix_arguments + [
             _python_pattern_function(major=major, minor=minor, bits=bits)
         ] + [name] + config_vars.venv_relative_python + config_vars.toolchain,
-        config_vars.shell + config_vars.runner +
-        [os.path.join(name, config_vars.venv_relative_python[0])])
+        config_vars.shell + config_vars.runner + [
+            os.path.join(name, config_vars.venv_relative_python[0]),
+            config_vars.test_name
+        ])
 
 
 def _pypy_config_generator(name, major, config_vars):
@@ -281,7 +290,7 @@ class CLanguage(object):
             self._docker_distro, self._make_options = self._compiler_options(
                 self.args.use_docker, self.args.compiler)
         if args.iomgr_platform == "uv":
-            cflags = '-DGRPC_UV -DGRPC_CUSTOM_IOMGR_THREAD_CHECK '
+            cflags = '-DGRPC_UV -DGRPC_CUSTOM_IOMGR_THREAD_CHECK -DGRPC_CUSTOM_SOCKET '
             try:
                 cflags += subprocess.check_output(
                     ['pkg-config', '--cflags', 'libuv']).strip() + ' '
@@ -770,12 +779,16 @@ class PythonLanguage(object):
             venv_relative_python = ['bin/python']
             toolchain = ['unix']
 
+        test_command = 'test_lite'
+        if args.iomgr_platform == 'gevent':
+            test_command = 'test_gevent'
         runner = [
             os.path.abspath('tools/run_tests/helper_scripts/run_python.sh')
         ]
-        config_vars = _PythonConfigVars(shell, builder,
-                                        builder_prefix_arguments,
-                                        venv_relative_python, toolchain, runner)
+
+        config_vars = _PythonConfigVars(
+            shell, builder, builder_prefix_arguments, venv_relative_python,
+            toolchain, runner, test_command, args.iomgr_platform)
         python27_config = _python_config_generator(
             name='py27',
             major='2',
@@ -1341,7 +1354,7 @@ argp.add_argument(
 )
 argp.add_argument(
     '--iomgr_platform',
-    choices=['native', 'uv'],
+    choices=['native', 'uv', 'gevent'],
     default='native',
     help='Selects iomgr platform to build on')
 argp.add_argument(
diff --git a/tools/run_tests/run_tests_matrix.py b/tools/run_tests/run_tests_matrix.py
index 1c99e794a9..e43319beba 100755
--- a/tools/run_tests/run_tests_matrix.py
+++ b/tools/run_tests/run_tests_matrix.py
@@ -114,7 +114,7 @@ def _workspace_jobspec(name,
 def _generate_jobs(languages,
                    configs,
                    platforms,
-                   iomgr_platform='native',
+                   iomgr_platforms=['native'],
                    arch=None,
                    compiler=None,
                    labels=[],
@@ -125,40 +125,43 @@ def _generate_jobs(languages,
     result = []
     for language in languages:
         for platform in platforms:
-            for config in configs:
-                name = '%s_%s_%s_%s' % (language, platform, config,
-                                        iomgr_platform)
-                runtests_args = [
-                    '-l', language, '-c', config, '--iomgr_platform',
-                    iomgr_platform
-                ]
-                if arch or compiler:
-                    name += '_%s_%s' % (arch, compiler)
-                    runtests_args += ['--arch', arch, '--compiler', compiler]
-                if '--build_only' in extra_args:
-                    name += '_buildonly'
-                for extra_env in extra_envs:
-                    name += '_%s_%s' % (extra_env, extra_envs[extra_env])
-
-                runtests_args += extra_args
-                if platform == 'linux':
-                    job = _docker_jobspec(
-                        name=name,
-                        runtests_args=runtests_args,
-                        runtests_envs=extra_envs,
-                        inner_jobs=inner_jobs,
-                        timeout_seconds=timeout_seconds)
-                else:
-                    job = _workspace_jobspec(
-                        name=name,
-                        runtests_args=runtests_args,
-                        runtests_envs=extra_envs,
-                        inner_jobs=inner_jobs,
-                        timeout_seconds=timeout_seconds)
-
-                job.labels = [platform, config, language, iomgr_platform
-                             ] + labels
-                result.append(job)
+            for iomgr_platform in iomgr_platforms:
+                for config in configs:
+                    name = '%s_%s_%s_%s' % (language, platform, config,
+                                            iomgr_platform)
+                    runtests_args = [
+                        '-l', language, '-c', config, '--iomgr_platform',
+                        iomgr_platform
+                    ]
+                    if arch or compiler:
+                        name += '_%s_%s' % (arch, compiler)
+                        runtests_args += [
+                            '--arch', arch, '--compiler', compiler
+                        ]
+                    if '--build_only' in extra_args:
+                        name += '_buildonly'
+                    for extra_env in extra_envs:
+                        name += '_%s_%s' % (extra_env, extra_envs[extra_env])
+
+                    runtests_args += extra_args
+                    if platform == 'linux':
+                        job = _docker_jobspec(
+                            name=name,
+                            runtests_args=runtests_args,
+                            runtests_envs=extra_envs,
+                            inner_jobs=inner_jobs,
+                            timeout_seconds=timeout_seconds)
+                    else:
+                        job = _workspace_jobspec(
+                            name=name,
+                            runtests_args=runtests_args,
+                            runtests_envs=extra_envs,
+                            inner_jobs=inner_jobs,
+                            timeout_seconds=timeout_seconds)
+
+                    job.labels = [platform, config, language, iomgr_platform
+                                 ] + labels
+                    result.append(job)
     return result
 
 
@@ -184,13 +187,22 @@ def _create_test_jobs(extra_args=[], inner_jobs=_DEFAULT_INNER_JOBS):
         timeout_seconds=_CPP_RUNTESTS_TIMEOUT)
 
     test_jobs += _generate_jobs(
-        languages=['csharp', 'python'],
+        languages=['csharp'],
         configs=['dbg', 'opt'],
         platforms=['linux', 'macos', 'windows'],
         labels=['basictests', 'multilang'],
         extra_args=extra_args,
         inner_jobs=inner_jobs)
 
+    test_jobs += _generate_jobs(
+        languages=['python'],
+        configs=['opt'],
+        platforms=['linux', 'macos', 'windows'],
+        iomgr_platforms=['native', 'gevent'],
+        labels=['basictests', 'multilang'],
+        extra_args=extra_args,
+        inner_jobs=inner_jobs)
+
     # supported on linux and mac.
     test_jobs += _generate_jobs(
         languages=['c++'],
@@ -377,7 +389,7 @@ def _create_portability_test_jobs(extra_args=[],
         languages=['c'],
         configs=['dbg'],
         platforms=['linux'],
-        iomgr_platform='uv',
+        iomgr_platforms=['uv'],
         labels=['portability', 'corelang'],
         extra_args=extra_args,
         inner_jobs=inner_jobs,