grpc/test/cpp/qps/driver.cc

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#include "test/cpp/qps/driver.h"
#include "src/core/support/env.h"
#include <grpc/support/alloc.h>
#include <grpc/support/log.h>

using std::vector;
using grpc::string;

static vector<string> get_hosts(const string& name) {
  char* env = gpr_getenv(name.c_str());
  if (!env) return vector<string>();

  vector<string> out;
  char* p = env;
  for (;;) {
  	char* comma = strchr(p, ',');
  	if (comma) {
  	  out.emplace_back(p, comma);
  	  p = comma + 1;
  	} else {
  	  out.emplace_back(p);
  	  gpr_free(env);
  	  return out;
  	}
  }
}

void RunScenario(const grpc::testing::ClientArgs& client_args, size_t num_clients,
                 const grpc::testing::ServerArgs& server_args,
                 size_t num_servers) {
  auto clients = get_hosts("QPS_CLIENTS");
  auto servers = get_hosts("QPS_SERVERS");

  GPR_ASSERT(clients.size() >= num_clients);
  GPR_ASSERT(servers.size() >= num_servers);
}