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https://gitee.com/acl-dev/acl.git
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9697f95b8f
This reverts commit 15d999759e
.
165 lines
3.7 KiB
C
165 lines
3.7 KiB
C
#include "lib_acl.h"
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typedef struct {
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ACL_VSTREAM *in;
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ACL_VSTRING *buf;
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ACL_EVENT *event;
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} STREAM_IN;
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static void trigger_event(int event_type acl_unused,
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ACL_EVENT *event acl_unused, void *context acl_unused)
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{
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printf("timer trigger now\r\n");
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printf("please input: ");
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fflush(stdout);
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}
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static int __stop_event = 0;
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static STREAM_IN *create_stream(ACL_EVENT *eventp)
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{
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STREAM_IN *in = (STREAM_IN*) acl_mymalloc(sizeof(STREAM_IN));
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in->in = acl_vstream_fhopen(fileno(stdin), 0); /* 用标准输入做为输入流 */
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in->buf = acl_vstring_alloc(256);
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in->event = eventp;
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return in;
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}
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static void free_stream(STREAM_IN *in)
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{
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acl_vstream_free(in->in);
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acl_vstring_free(in->buf);
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acl_myfree(in);
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}
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static void read_callback(int event_type acl_unused, ACL_EVENT *event,
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ACL_VSTREAM *stream, void *context)
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{
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STREAM_IN *in = (STREAM_IN *) context;
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int ready;
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acl_assert(in->in == stream);
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acl_assert(in->event == event);
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/* 尝试从输入流中读取一行数据,并且要求去掉尾部的回车换行符 */
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if (acl_vstream_gets_nonl_peek(stream, in->buf, &ready) == ACL_VSTREAM_EOF)
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{
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acl_event_disable_read(event, stream);
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printf(">>>>gets error\r\n");
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free_stream(in);
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__stop_event = 1;
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} else if (ready) {
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#define STR acl_vstring_str
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/* 如果读到完整的一行数据,则显示之 */
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printf(">>>>gets one line: %s\r\n", STR(in->buf));
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if (strcasecmp(STR(in->buf), "QUIT") == 0) {
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__stop_event = 1;
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free_stream(in);
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} else {
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printf("please input: ");
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fflush(stdout);
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ACL_VSTRING_RESET(in->buf); /* 清空缓冲区 */
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}
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}
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}
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static void usage(const char *procname)
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{
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printf("usage: %s -h [help]\r\n"
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" -M [printf time meter]\r\n"
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" -t select|poll|kernel [default: select]\r\n"
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" -s delay_sec [defaut: 1]\r\n"
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" -u delay_usec [default: 0]\r\n"
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" -m timer_delay [default: 100 microsecond, disable timer if < 0]\r\n"
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" -k [if timer keep on, default: 1]\r\n", procname);
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}
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int main(int argc acl_unused, char *argv[] acl_unused)
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{
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ACL_EVENT *eventp;
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STREAM_IN *in;
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char event_type[64];
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int ch, delay_sec = 1, delay_usec = 0;
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int timer_delay = 100, timer_keep = 0;
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int meter = 0;
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/* 初始化 acl 库 */
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acl_lib_init();
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/* 将错误日志输出至标准输出 */
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acl_msg_stdout_enable(1);
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event_type[0] = 0;
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while ((ch = getopt(argc, argv, "ht:s:u:m:kM")) > 0) {
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switch (ch) {
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case 'h':
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usage(argv[0]);
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return 0;
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case 't':
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ACL_SAFE_STRNCPY(event_type, optarg, sizeof(event_type));
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break;
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case 's':
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delay_sec = atoi(optarg);
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if (delay_sec < 0)
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delay_sec = 0;
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break;
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case 'u':
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delay_usec = atoi(optarg);
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if (delay_usec < 0)
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delay_usec = 0;
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break;
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case 'm':
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timer_delay = atoi(optarg);
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break;
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case 'k':
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timer_keep = 1;
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break;
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case 'M':
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meter = 1;
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break;
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default:
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break;
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}
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}
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/* 创建非阻塞事件引擎 */
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if (strcasecmp(event_type, "kernel") == 0)
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eventp = acl_event_new_kernel(delay_sec, delay_usec);
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else if (strcasecmp(event_type, "poll") == 0)
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eventp = acl_event_new_poll(delay_sec, delay_usec);
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else
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eventp = acl_event_new_select(delay_sec, delay_usec);
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if (timer_delay >= 0)
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acl_event_request_timer(eventp, trigger_event, NULL,
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timer_delay, timer_keep);
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/* 创建输入流对象 */
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in = create_stream(eventp);
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/* 将标准输入置入异步 IO 监听事件中 */
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acl_event_enable_read(eventp, in->in, 0, read_callback, in);
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printf("begin wait input from standard in\r\n");
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/* 进行事件循环中 */
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while (!__stop_event) {
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if (meter)
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ACL_METER_TIME("begin event");
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acl_event_loop(eventp);
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if (meter)
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ACL_METER_TIME("end event");
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}
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/* 释放事件引擎 */
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acl_event_free(eventp);
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printf("event stopped!\r\n");
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return (0);
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}
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