acl/lib_acl_cpp/samples/string/string5/main.cpp

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#include "lib_acl.h"
#include "acl_cpp/lib_acl.hpp"
#include <stdio.h>
#include <string>
static void test(acl::string& buf)
{
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
buf += "hello world!";
}
static void test_mmap(int max)
{
const char* filename = "local.map";
acl::fstream fp;
if (fp.open(filename, O_RDWR | O_CREAT | O_TRUNC, 0600) == false)
{
printf("open %s error %s\r\n", filename, acl::last_serror());
return;
}
size_t max_len = 1024 * 1024 * 500, init_len = 4096;
acl::string buf(fp.file_handle(), max_len, init_len);
ACL_METER_TIME(">> begin acl::string");
for (int i = 0; i < max; i++)
{
test(buf);
}
ACL_METER_TIME(">> end acl::string");
}
static void test_mem(int max)
{
size_t max_len = 1024 * 1024 * 500, init_len = 4096;
acl::string buf(init_len);
buf.set_max(max_len);
ACL_METER_TIME(">> begin acl::string");
for (int i = 0; i < max; i++)
{
test(buf);
}
ACL_METER_TIME(">> end acl::string");
}
static void usage(const char* procname)
{
printf("usage: %s -h [help] -m [use_mmap] -n max_count\r\n", procname);
}
int main(int argc, char* argv[])
{
bool use_mmap = false;
int ch, max = 100000;
while ((ch = getopt(argc, argv, "hmn:")) > 0)
{
switch (ch)
{
case 'h':
usage(argv[0]);
return 0;
case 'm':
use_mmap = true;
break;
case 'n':
max = atoi(optarg);
break;
default:
break;
}
}
if (use_mmap)
test_mmap(max);
else
test_mem(max);
return (0);
}