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Xle perf improvement (#1)

Browse Source 
* alpha version of proxy
* alpha version of proxy
* fix method bug
* fix post deode bug
* regen archive
* Reduce CPU usage on idle in proxy mode:
  - Scheduler timeout event now support millisecond granularity
  - Use only READABLE event on proxy socket which reduce tasks CPU time
* use both readable event and timeout event
* reduce scheduler poll time
* Fix segmentfault error
* Log worker task in statistic
* fix high cpu usage when handling bad POST request
* fix event-stream handling bug on proxy mode
* fix missing data events when uploading
* Race condition when get IP address from host in proxy mode
  - ip_from_hostname() is not thread safe
  - use global lock mechanism
This commit is contained in:
Xuan Sang LE 2021-02-24 18:12:36 +01:00 committed by GitHub
parent ce5549d394
commit dd7ff9b434
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
8 changed files with 400 additions and 88 deletions
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dist/antd-1.0.6b.tar.gz vendored
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313
http_server.c
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@ -1,4 +1,6 @@
//#define _GNU_SOURCE
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <sys/socket.h>
#include <poll.h>
#include <netinet/in.h>
@ -304,7 +306,7 @@ void *accept_request(void *data)
antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_WRITABLE | TASK_EVT_ON_READABLE);
// first verify if the socket is ready
antd_client_t *client = (antd_client_t *)rq->client;
struct pollfd pfd[1];
pfd[0].fd = client->sock;
@ -316,7 +318,7 @@ void *accept_request(void *data)
antd_error(rq->client, 400, "Bad request");
return task;
}
if(pfd[0].revents & POLLERR || pfd[0].revents & POLLHUP)
if (pfd[0].revents & POLLERR || pfd[0].revents & POLLHUP)
{
antd_error(rq->client, 400, "Bad request");
return task;
@ -410,7 +412,6 @@ void *resolve_request(void *data)
char path[2 * BUFFLEN];
antd_request_t *rq = (antd_request_t *)data;
antd_task_t *task = antd_create_task(NULL, (void *)rq, NULL, rq->client->last_io);
antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_WRITABLE | TASK_EVT_ON_READABLE);
char *url = (char *)dvalue(rq->request, "RESOURCE_PATH");
char *newurl = NULL;
char *rqp = NULL;
@ -482,7 +483,6 @@ void *resolve_request(void *data)
if (strcmp(mime_type, "application/octet-stream") == 0)
{
char *ex = ext(path);
//printf("Path: %s\n", path);
char *h = NULL;
if (ex)
{
@ -523,6 +523,7 @@ void *resolve_request(void *data)
}
}
}
antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_WRITABLE);
task->handle = serve_file;
}
return task;
@ -531,6 +532,8 @@ void *resolve_request(void *data)
void *finish_request(void *data)
{
if (!data)
return NULL;
destroy_request(data);
server_config.connection--;
LOG("Remaining connection %d", server_config.connection);
@ -566,7 +569,6 @@ int rule_check(const char *k, const char *v, const char *host, const char *_url,
}
tmp = (char *)v;
char *search = "<([a-zA-Z0-9]+)>";
//printf("match again %s\n",tmp);
while ((ret = regex_match(search, tmp, 2, val_matches)))
{
memcpy(buf + idx, tmp, val_matches[1].rm_so - 1);
@ -616,7 +618,6 @@ void *serve_file(void *data)
{
antd_request_t *rq = (antd_request_t *)data;
antd_task_t *task = antd_create_task(NULL, (void *)rq, NULL, rq->client->last_io);
antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_WRITABLE | TASK_EVT_ON_READABLE);
char *path = (char *)dvalue(rq->request, "ABS_RESOURCE_PATH");
char *mime_type = (char *)dvalue(rq->request, "RESOURCE_MIME");
rq->client->state = ANTD_CLIENT_SERVE_FILE;
@ -737,7 +738,6 @@ char *apply_rules(dictionary_t rules, const char *host, char *url)
{
k = it->key;
v = (char *)it->value;
//printf("[%s]: [%s]\n", k, v);
// 1 group
if (rule_check(k, v, host, url, query_string, url))
{
@ -755,6 +755,226 @@ char *apply_rules(dictionary_t rules, const char *host, char *url)
return strdup(query_string);
}
static void *proxy_monitor(void *data)
{
antd_request_t *rq = (antd_request_t *)data;
rq->client->state = ANTD_CLIENT_PROXY_MONITOR;
antd_client_t *proxy = (antd_client_t *)dvalue(rq->request, "PROXY_HANDLE");
antd_task_t *task = antd_create_task(NULL, data, NULL, rq->client->last_io);
int ret, sz1 = 0, sz2 = 0;
char *buf = NULL;
buf = (char *)malloc(BUFFLEN);
struct pollfd pfd[1];
memset(pfd, 0, sizeof(pfd));
pfd[0].fd = proxy->sock;
pfd[0].events = POLLIN;
ret = 1;
if (poll(pfd, 1, 0) < 0)
{
(void)close(proxy->sock);
return task;
}
do
{
sz1 = antd_recv_upto(rq->client, buf, BUFFLEN);
if ((sz1 < 0) || (sz1 > 0 && antd_send(proxy, buf, sz1) != sz1))
{
ret = 0;
break;
}
sz2 = antd_recv_upto(proxy, buf, BUFFLEN);
if (sz2 < 0 || (sz2 > 0 && antd_send(rq->client, buf, sz2) != sz2))
{
ret = 0;
break;
}
} while (sz1 > 0 || sz2 > 0);
free(buf);
if (ret == 0)
{
(void)close(proxy->sock);
return task;
}
if (sz2 == 0)
{
if (
pfd[0].revents & POLLERR ||
pfd[0].revents & POLLRDHUP ||
pfd[0].revents & POLLHUP ||
pfd[0].revents & POLLNVAL) //||
//pfd[0].revents & POLLIN)
{
(void)close(proxy->sock);
return task;
}
}
if(pfd[0].revents & POLLIN)
{
antd_task_bind_event(task, proxy->sock, 0, TASK_EVT_ON_READABLE);
}
else
{
antd_task_bind_event(task, proxy->sock, 100u, TASK_EVT_ON_TIMEOUT);
}
task->handle = proxy_monitor;
task->access_time = rq->client->last_io;
antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_READABLE);
return task;
}
static void *proxify(void *data)
{
int sock_fd, size, ret;
char *str = NULL;
chain_t it;
antd_request_t *rq = (antd_request_t *)data;
antd_client_t *proxy = NULL;
rq->client->state = ANTD_CLIENT_RESOLVE_REQUEST;
char *host = dvalue(rq->request, "PROXY_HOST");
int port = atoi(dvalue(rq->request, "PROXY_PORT"));
char *path = dvalue(rq->request, "PROXY_PATH");
char *query = dvalue(rq->request, "PROXY_QUERY");
char* ptr, *ip;
dictionary_t xheader = dvalue(rq->request, "REQUEST_HEADER");
antd_task_t *task = antd_create_task(NULL, data, NULL, rq->client->last_io);
if (!xheader)
{
antd_error(rq->client, 400, "Badd Request");
return task;
}
pthread_mutex_lock(&server_mux);
ip = NULL;
// ip_from_host is not threadsafe, need to lock it
ptr = ip_from_hostname(host);
if(ptr)
{
ip = strdup(ptr);
}
pthread_mutex_unlock(&server_mux);
if(!ip)
{
antd_error(rq->client, 502, "Badd address");
return task;
}
sock_fd = request_socket(ip, port);
free(ip);
if (sock_fd == -1)
{
antd_error(rq->client, 503, "Service Unavailable");
return task;
}
set_nonblock(sock_fd);
/*struct timeval timeout;
timeout.tv_sec = 2;
timeout.tv_usec = 0; //POLL_EVENT_TO*1000;
if (setsockopt(sock_fd, SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout, sizeof(timeout)) < 0)
{
ERROR("setsockopt failed:%s", strerror(errno));
antd_error(rq->client, 500, "Internal proxy error");
(void)close(sock_fd);
return task;
}
if (setsockopt(sock_fd, SOL_SOCKET, SO_SNDTIMEO, (char *)&timeout, sizeof(timeout)) < 0)
{
ERROR("setsockopt failed:%s", strerror(errno));
antd_error(rq->client, 500, "Internal proxy error");
(void)close(sock_fd);
return task;
}*/
proxy = (antd_client_t *)malloc(sizeof(antd_client_t));
proxy->sock = sock_fd;
proxy->ssl = NULL;
proxy->zstream = NULL;
proxy->z_level = ANTD_CNONE;
time(&proxy->last_io);
// store content length here
dput(rq->request, "PROXY_HANDLE", proxy);
str = __s("%s %s?%s HTTP/1.1\r\n", (char *)dvalue(rq->request, "METHOD"), path, query);
size = strlen(str);
ret = antd_send(proxy, str, size);
free(str);
if (ret != size)
{
antd_error(rq->client, 500, "");
(void)close(sock_fd);
return task;
}
for_each_assoc(it, xheader)
{
str = __s("%s: %s\r\n", it->key, (char *)it->value);
size = strlen(str);
ret = antd_send(proxy, str, size);
free(str);
if (ret != size)
{
antd_error(rq->client, 500, "");
(void)close(sock_fd);
return task;
}
}
(void)antd_send(proxy, "\r\n", 2);
// now monitor the proxy
task->handle = proxy_monitor;
task->access_time = rq->client->last_io;
// register event
antd_task_bind_event(task, proxy->sock, 0, TASK_EVT_ON_READABLE | TASK_EVT_ON_WRITABLE);
return task;
}
/**
* Check if the current request is e reverse proxy
* return a proxy task if this is the case
*/
static void *check_proxy(antd_request_t *rq, const char *path, const char *query)
{
char *pattern = "^(https?)://([^:]+):([0-9]+)(.*)$";
antd_task_t *task = antd_create_task(NULL, (void *)rq, NULL, rq->client->last_io);
char buff[256];
regmatch_t matches[5];
int ret, size;
ret = regex_match(pattern, path, 5, matches);
if (!ret)
{
return NULL;
}
if (matches[1].rm_eo - matches[1].rm_so == 5)
{
// https is not supported for now
// TODO add https support
antd_error(rq->client, 503, "Service Unavailable");
return task;
}
// http proxy request
size = matches[2].rm_eo - matches[2].rm_so < (int)sizeof(buff) ? matches[2].rm_eo - matches[2].rm_so : (int)sizeof(buff);
(void)memcpy(buff, path + matches[2].rm_so, size);
buff[size] = '\0';
dput(rq->request, "PROXY_HOST", strdup(buff));
size = matches[3].rm_eo - matches[3].rm_so < (int)sizeof(buff) ? matches[3].rm_eo - matches[3].rm_so : (int)sizeof(buff);
(void)memcpy(buff, path + matches[3].rm_so, size);
buff[size] = '\0';
dput(rq->request, "PROXY_PORT", strdup(buff));
dput(rq->request, "PROXY_PATH", strdup(path + matches[4].rm_so));
dput(rq->request, "PROXY_QUERY", strdup(query));
task->handle = proxify;
antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_READABLE | TASK_EVT_ON_WRITABLE);
return task;
}
/**
* Decode the HTTP request header
*/
@ -811,10 +1031,16 @@ void *decode_request_header(void *data)
antd_error(rq->client, 413, "Payload Too Large");
ERROR("Header size too large (%d): %d vs %d", rq->client->sock, header_size, HEADER_MAX_SIZE);
task = antd_create_task(NULL, (void *)rq, NULL, rq->client->last_io);
antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_WRITABLE | TASK_EVT_ON_READABLE);
return task;
}
}
if (ret == 0)
{
//antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_WRITABLE | TASK_EVT_ON_READABLE);
task = antd_create_task(decode_request_header, (void *)rq, NULL, rq->client->last_io);
antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_READABLE);
return task;
}
// check for content length size
line = (char *)dvalue(xheader, "Content-Length");
if (line)
@ -827,7 +1053,6 @@ void *decode_request_header(void *data)
// 100 ms sleep
usleep(100000);
task = antd_create_task(NULL, (void *)rq, NULL, rq->client->last_io);
antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_WRITABLE | TASK_EVT_ON_READABLE);
return task;
}
}
@ -865,6 +1090,16 @@ void *decode_request_header(void *data)
dput(rq->request, "COOKIE", cookie);
if (host)
free(host);
// check if this is a reverse proxy ?
task = check_proxy(rq, buf, query);
if (task)
{
if (query)
free(query);
return task;
}
dput(rq->request, "RESOURCE_PATH", url_decode(buf));
if (query)
{
@ -873,7 +1108,7 @@ void *decode_request_header(void *data)
}
// header ok, now checkmethod
task = antd_create_task(decode_request, (void *)rq, NULL, rq->client->last_io);
antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_WRITABLE | TASK_EVT_ON_READABLE);
antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_WRITABLE | TASK_EVT_ON_READABLE); //
return task;
}
@ -892,8 +1127,8 @@ void *decode_request(void *data)
ws = 1;
method = (char *)dvalue(rq->request, "METHOD");
task = antd_create_task(NULL, (void *)rq, NULL, rq->client->last_io);
antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_WRITABLE | TASK_EVT_ON_READABLE);
if (strcmp(method, "GET") == 0 || strcmp(method, "HEAD") == 0 || strcmp(method, "OPTIONS") == 0)
//antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_WRITABLE | TASK_EVT_ON_READABLE);
if (EQU(method, "GET"))
{
//if(ctype) free(ctype);
if (ws && ws_key != NULL)
@ -908,7 +1143,12 @@ void *decode_request(void *data)
task->handle = resolve_request;
return task;
}
else if (strcmp(method, "POST") == 0)
else if (EQU(method, "HEAD") || EQU(method, "OPTIONS") || EQU(method, "DELETE"))
{
task->handle = resolve_request;
return task;
}
else if (EQU(method, "POST") || EQU(method, "PUT") || EQU(method, "PATCH"))
{
task->handle = resolve_request;
return task;
@ -923,6 +1163,7 @@ void *decode_request(void *data)
void *decode_post_request(void *data)
{
antd_request_t *rq = (antd_request_t *)data;
rq->client->state = ANTD_CLIENT_RQ_DATA_DECODE;
dictionary_t request = dvalue(rq->request, "REQUEST_DATA");
dictionary_t headers = dvalue(rq->request, "REQUEST_HEADER");
char *ctype = NULL;
@ -935,8 +1176,8 @@ void *decode_post_request(void *data)
clen = atoi(tmp);
char *method = (char *)dvalue(rq->request, "METHOD");
task = antd_create_task(NULL, (void *)rq, NULL, rq->client->last_io);
antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_WRITABLE | TASK_EVT_ON_READABLE);
if (!method || strcmp(method, "POST") != 0)
//antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_WRITABLE | TASK_EVT_ON_READABLE);
if (!method || (!EQU(method, "POST") && !EQU(method, "PUT") && !EQU(method, "PATCH")))
return task;
if (ctype == NULL || clen == -1)
{
@ -954,7 +1195,11 @@ void *decode_post_request(void *data)
}
else if (clen > 0)
{
task->handle = decode_post_request;
// WARN: this may not work on ssl socket
// antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_READABLE | TASK_EVT_ON_WRITABLE);
// task->handle = decode_post_request;
antd_error(rq->client, 400, "Bad Request, missing content data");
return task;
}
}
else if (strstr(ctype, FORM_MULTI_PART))
@ -965,7 +1210,6 @@ void *decode_post_request(void *data)
else
{
char *pquery = post_data_decode(rq->client, clen);
//printf("POST: %s\n", pquery);
char *key = strstr(ctype, "/");
if (key)
key++;
@ -978,9 +1222,13 @@ void *decode_post_request(void *data)
}
else if (clen > 0)
{
task->handle = decode_post_request;
//task->handle = decode_post_request;
//antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_READABLE | TASK_EVT_ON_WRITABLE);
antd_error(rq->client, 400, "Bad Request, missing content data");
return task;
}
}
antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_WRITABLE);
return task;
}
@ -1000,7 +1248,6 @@ void ws_confirm_request(void *client, const char *key)
if (n < 0)
n = 0;
strncat(rkey, WS_MAGIC_STRING, n);
//printf("RESPONDKEY '%s'\n", rkey);
#ifdef USE_OPENSSL
SHA_CTX context;
#else
@ -1011,7 +1258,6 @@ void ws_confirm_request(void *client, const char *key)
SHA1_Update(&context, rkey, strlen(rkey));
SHA1_Final((uint8_t *)sha_d, &context);
Base64encode(base64, sha_d, 20);
//printf("Base 64 '%s'\n", base64);
// send accept to client
sprintf(buf, "HTTP/1.1 101 Switching Protocols\r\n");
antd_send(client, buf, strlen(buf));
@ -1063,6 +1309,7 @@ void *decode_multi_part_request(void *data, const char *ctype)
int len;
antd_request_t *rq = (antd_request_t *)data;
antd_task_t *task = antd_create_task(NULL, (void *)rq, NULL, rq->client->last_io);
//antd_task_bind_event(task, rq->client->sock, 0, );
antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_WRITABLE | TASK_EVT_ON_READABLE);
//dictionary dic = NULL;
boundary = strsep(&str_copy, "="); //discard first part
@ -1104,7 +1351,6 @@ void *decode_multi_part_request_data(void *data)
while (((len = read_buf(rq->client, buf, sizeof(buf))) > 0) && !strstr(buf, "Content-Disposition:"))
;
;
if (len <= 0 || !strstr(buf, "Content-Disposition:"))
{
return task;
@ -1214,20 +1460,23 @@ void *decode_multi_part_request_data(void *data)
}
free(part_name);
}
//printf("[Lines]:%s\n",line);
// check if end of request
if (line && strstr(line, boundend))
{
//LOG("End request %s", boundend);
free(boundend);
//antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_WRITABLE);
return task;
}
free(boundend);
if (line && strstr(line, boundary))
{
// continue upload
//antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_READABLE);
task->handle = decode_multi_part_request_data;
return task;
}
free(boundend);
//antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_WRITABLE);
return task;
}
/**
@ -1275,7 +1524,7 @@ char *post_data_decode(void *client, int len)
char *ptr = query;
int readlen = len > BUFFLEN ? BUFFLEN : len;
int read = 0, stat = 1;
while (readlen > 0 && stat > 0)
while (readlen > 0 && stat >= 0)
{
stat = antd_recv_upto(client, ptr + read, readlen);
if (stat > 0)
@ -1283,6 +1532,17 @@ char *post_data_decode(void *client, int len)
read += stat;
readlen = (len - read) > BUFFLEN ? BUFFLEN : (len - read);
}
if (stat == 0)
{
if (difftime(time(NULL), ((antd_client_t*)client)->last_io) > MAX_IO_WAIT_TIME)
{
stat = -1;
}
else
{
usleep(POLL_EVENT_TO*1000);
}
}
}
if (read > 0)
@ -1356,7 +1616,6 @@ void *execute_plugin(void *data, const char *pname)
{
free(task);
task = antd_create_task(decode_post_request, (void *)rq, fn, rq->client->last_io);
antd_task_bind_event(task, rq->client->sock, 0, TASK_EVT_ON_WRITABLE | TASK_EVT_ON_READABLE);
}
return task;
}
@ -1394,4 +1653,4 @@ int compressable(char *ctype)
}
return 0;
}
#endif
#endif

10
httpd.c
View File

@ -297,6 +297,12 @@ void antd_scheduler_ext_statistic(int fd, void *user_data)
void antd_scheduler_destroy_data(void *data)
{
antd_request_t *rq = (antd_request_t *)data;
antd_client_t *proxy = (antd_client_t *)dvalue(rq->request, "PROXY_HANDLE");
if(proxy)
{
close(proxy->sock);
}
finish_request(data);
}
@ -306,8 +312,8 @@ int antd_task_data_id(void *data)
if(!rq)
return 0;
return antd_scheduler_next_id(scheduler,rq->client->sock);
//UNUSED(data);
//return antd_scheduler_next_id(scheduler,0);
/*UNUSED(data);
return antd_scheduler_next_id(scheduler,0);*/
}
int main(int argc, char *argv[])

12
lib/handle.c
View File

@ -565,6 +565,10 @@ int antd_recv_upto(void *src, void *data, int len)
}
else
{
/*if (difftime(time(NULL), source->last_io) > MAX_IO_WAIT_TIME)
{
return -1;
}*/
switch (err)
{
case SSL_ERROR_NONE:
@ -603,11 +607,15 @@ int antd_recv_upto(void *src, void *data, int len)
time(&source->last_io);
return received;
}
if (received == 0 || (errno != EAGAIN && errno != EWOULDBLOCK))
/*else if (difftime(time(NULL), source->last_io) > MAX_IO_WAIT_TIME)
{
return -1;
}*/
if (received <= 0 && (errno == EAGAIN || errno == EWOULDBLOCK))
{
return 0;
}
return 0;
return -1;
#ifdef USE_OPENSSL
}
#endif

2
lib/handle.h
View File

@ -25,6 +25,8 @@
#define ANTD_CLIENT_PROTO_CHECK 0x4
#define ANTD_CLIENT_RESOLVE_REQUEST 0x5
#define ANTD_CLIENT_SERVE_FILE 0x6
#define ANTD_CLIENT_RQ_DATA_DECODE 0x7
#define ANTD_CLIENT_PROXY_MONITOR 0x8
typedef enum
{

139
lib/scheduler.c
View File

@ -5,12 +5,13 @@
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <sys/time.h>
#include <poll.h>
#include "scheduler.h"
#include "utils.h"
#include "bst.h"
#define MAX_VALIDITY_INTERVAL 60 // 1minute
#define MAX_VALIDITY_INTERVAL 30 // s
#define MAX_FIFO_NAME_SZ 255
// callback definition
@ -24,6 +25,7 @@ typedef struct
{
int flags;
int fd;
struct timeval stamp;
int timeout; // seconds
antd_task_t *task;
} antd_task_evt_item_t;
@ -47,6 +49,7 @@ typedef struct
{
int id;
pthread_t tid;
antd_task_t* current_task;
void *manager;
} antd_worker_t;
@ -237,48 +240,58 @@ static void *work(antd_worker_t *worker)
}
else
{
worker->current_task = it->task;
//LOG("task executed by worker %d\n", worker->id);
antd_execute_task(scheduler, it->task);
free(it);
worker->current_task = NULL;
}
}
return NULL;
}
static void antd_task_dump(int fd, antd_task_t* task, char* buffer)
{
if (task == NULL || fd < 0)
{
return;
}
int ret;
// send statistic on task data
snprintf(buffer, MAX_FIFO_NAME_SZ, "---- Task %d created at: %lu ----\n", task->id, task->stamp);
ret = write(fd, buffer, strlen(buffer));
// send statistic on task data
snprintf(buffer, MAX_FIFO_NAME_SZ, "Access time: %lu\nn", (unsigned long)task->access_time);
ret = write(fd, buffer, strlen(buffer));
snprintf(buffer, MAX_FIFO_NAME_SZ, "Current time: %lu\n", (unsigned long)time(NULL));
ret = write(fd, buffer, strlen(buffer));
if (task->handle)
{
snprintf(buffer, MAX_FIFO_NAME_SZ, "Has handle: yes\n");
ret = write(fd, buffer, strlen(buffer));
}
if (task->callback)
{
snprintf(buffer, MAX_FIFO_NAME_SZ, "Has callback: yes\n");
ret = write(fd, buffer, strlen(buffer));
}
UNUSED(ret);
// now print all task data statistic
antd_scheduler_ext_statistic(fd, task->data);
}
static void print_static_info(bst_node_t *node, void **args, int argc)
{
if (argc != 2)
{
return;
}
int ret;
char *buffer = args[0];
int *fdp = args[1];
antd_task_t *task = (antd_task_t *)node->data;
// send statistic on task data
snprintf(buffer, MAX_FIFO_NAME_SZ, "---- Task %d created at: %lu ----\n", task->id, task->stamp);
ret = write(*fdp, buffer, strlen(buffer));
// send statistic on task data
snprintf(buffer, MAX_FIFO_NAME_SZ, "Access time: %lu\nn", (unsigned long)task->access_time);
ret = write(*fdp, buffer, strlen(buffer));
snprintf(buffer, MAX_FIFO_NAME_SZ, "Current time: %lu\n", (unsigned long)time(NULL));
ret = write(*fdp, buffer, strlen(buffer));
if (task->handle)
{
snprintf(buffer, MAX_FIFO_NAME_SZ, "Has handle: yes\n");
ret = write(*fdp, buffer, strlen(buffer));
}
if (task->callback)
{
snprintf(buffer, MAX_FIFO_NAME_SZ, "Has callback: yes\n");
ret = write(*fdp, buffer, strlen(buffer));
}
UNUSED(ret);
// now print all task data statistic
antd_scheduler_ext_statistic(*fdp, task->data);
antd_task_dump(*fdp, task, buffer);
}
static void *statistic(antd_scheduler_t *scheduler)
{
@ -329,6 +342,18 @@ static void *statistic(antd_scheduler_t *scheduler)
bst_for_each(scheduler->task_queue, print_static_info, argc, 2);
pthread_mutex_unlock(&scheduler->scheduler_lock);
// write worker current task
for (int i = 0; i < scheduler->n_workers; i++)
{
snprintf(buffer, MAX_FIFO_NAME_SZ, "Worker: %d. Detail:\n", i);
ret = write(scheduler->stat_fd, buffer, strlen(buffer));
if(scheduler->workers[i].current_task)
{
antd_task_dump(scheduler->stat_fd, scheduler->workers[i].current_task, buffer);
}
}
ret = close(scheduler->stat_fd);
scheduler->stat_fd = -1;
usleep(5000);
@ -421,6 +446,7 @@ antd_scheduler_t *antd_scheduler_init(int n, const char *stat_name)
{
scheduler->workers[i].id = -1;
scheduler->workers[i].manager = (void *)scheduler;
scheduler->workers[i].current_task = NULL;
if (pthread_create(&scheduler->workers[i].tid, NULL, (void *(*)(void *))work, (void *)&scheduler->workers[i]) != 0)
{
ERROR("pthread_create: cannot create worker: %s", strerror(errno));
@ -644,33 +670,40 @@ static void antd_deploy_task(bst_node_t* node, void** argv, int argc)
return;
antd_scheduler_t* sched = (antd_scheduler_t*) argv[0];
antd_task_t* task = node->data;
pthread_mutex_lock(&sched->scheduler_lock);
sched->task_queue = bst_delete(sched->task_queue, task->id);
pthread_mutex_unlock(&sched->scheduler_lock);
antd_task_schedule(sched, task);
}
static void task_event_collect(bst_node_t* node, void** argv, int argc)
{
UNUSED(argc);
antd_task_t* task = (antd_task_t*) node->data;
antd_queue_t* exec_list = (antd_queue_t*) argv[0];
bst_node_t** exec_list = (bst_node_t**) argv[0];
bst_node_t** poll_list = (bst_node_t**) argv[1];
struct timeval now;
int* pollsize = (int*) argv[2];
if(!task->events)
{
enqueue(exec_list, task);
*exec_list = bst_insert(*exec_list,task->id, task);
return;
}
antd_queue_item_t it = task->events;
while(it)
{
if(it->evt->flags & TASK_EVT_ALWAY_ON)
if((it->evt->flags & TASK_EVT_ALWAY_ON) || antd_scheduler_validate_data(task) == 0 )
{
enqueue(exec_list, task);
*exec_list = bst_insert(*exec_list,task->id, task);
}
else if(it->evt->flags & TASK_EVT_ON_TIMEOUT)
{
// check if timeout
if(difftime(time(NULL),task->stamp) > it->evt->timeout )
gettimeofday(&now, NULL);
//do stuff
int diff = (int)(((now.tv_sec - it->evt->stamp.tv_sec) * 1000000 + now.tv_usec - it->evt->stamp.tv_usec) / 1000);
if( diff >= it->evt->timeout )
{
enqueue(exec_list, task);
*exec_list = bst_insert(*exec_list,task->id, task);
}
}
else
@ -689,6 +722,7 @@ void antd_task_bind_event(antd_task_t *task, int fd, int timeout, int flags)
eit->timeout = timeout;
eit->flags = flags;
eit->task = task;
gettimeofday(&eit->stamp, NULL);
enqueue(&task->events, eit);
}
@ -696,11 +730,9 @@ void *antd_scheduler_wait(void *ptr)
{
int pollsize, ready;
void *argv[3];
antd_queue_t exec_list = NULL;
//antd_queue_t exec_list = NULL;
bst_node_t* poll_list = NULL;
bst_node_t* scheduled_list = NULL;
antd_queue_item_t it = NULL;
antd_queue_item_t curr = NULL;
antd_task_evt_item_t *eit = NULL;
bst_node_t* node, *task_node = NULL;
struct pollfd *pfds = NULL;
@ -709,14 +741,14 @@ void *antd_scheduler_wait(void *ptr)
while (scheduler->status)
{
pollsize = 0;
argv[0] = &exec_list;
argv[0] = &scheduled_list;
argv[1] = &poll_list;
argv[2] = &pollsize;
pthread_mutex_lock(&scheduler->scheduler_lock);
bst_for_each(scheduler->task_queue, task_event_collect, argv, 3);
pthread_mutex_unlock(&scheduler->scheduler_lock);
// schedule exec list first
it = exec_list;
/*it = exec_list;
while(it)
{
if(it->task)
@ -730,7 +762,7 @@ void *antd_scheduler_wait(void *ptr)
curr = it;
it = it->next;
free(curr);
}
}*/
// Detect event on pollist
if(pollsize > 0)
{
@ -768,37 +800,34 @@ void *antd_scheduler_wait(void *ptr)
// event triggered schedule the task
pthread_mutex_lock(&scheduler->scheduler_lock);
task_node = bst_find(scheduler->task_queue, eit->task->id);
if(task_node)
scheduler->task_queue = bst_delete(scheduler->task_queue, eit->task->id);
pthread_mutex_unlock(&scheduler->scheduler_lock);
if(task_node)
scheduled_list = bst_insert(scheduled_list, eit->task->id, eit->task);
//antd_task_schedule(scheduler, eit->task);
}
else if( (pfds[i].revents & POLLERR) || (pfds[i].revents & POLLHUP) ) {
else if( (pfds[i].revents & POLLERR) || (pfds[i].revents & POLLHUP)) {
// task is no longer available
ERROR("Poll: Task %d is no longer valid. Remove it", eit->task->id);
// remove task from task queue
pthread_mutex_lock(&scheduler->scheduler_lock);
scheduler->task_queue = bst_delete(scheduler->task_queue, eit->task->id);
pthread_mutex_unlock(&scheduler->scheduler_lock);
eit->task->access_time = 0;
eit->task->handle = NULL;
/*
antd_scheduler_destroy_data(eit->task->data);
destroy_task(eit->task);
eit->task->data = NULL;*/
scheduled_list = bst_insert(scheduled_list, eit->task->id, eit->task);
}
}
}
if(scheduled_list)
{
argv[0] = scheduler;
bst_for_each(scheduled_list, antd_deploy_task, argv, 1);
bst_free(scheduled_list);
scheduled_list = NULL;
}
}
free(pfds);
}
}
exec_list = NULL;
if(scheduled_list)
{
argv[0] = scheduler;
bst_for_each(scheduled_list, antd_deploy_task, argv, 1);
bst_free(scheduled_list);
scheduled_list = NULL;
}
bst_free(poll_list);
poll_list = NULL;

2
lib/scheduler.h
View File

@ -11,7 +11,7 @@
#define TASK_EVT_ON_READABLE 0x02
#define TASK_EVT_ON_WRITABLE 0x04
#define TASK_EVT_ON_TIMEOUT 0x08
#define POLL_EVENT_TO 100 // ms
#define POLL_EVENT_TO 10 // ms
typedef struct _antd_scheduler_t antd_scheduler_t;
typedef struct _antd_callback_t antd_callback_t;

10
lib/utils.c
View File

@ -605,7 +605,11 @@ int request_socket(const char *ip, int port)
{
int sockfd;
struct sockaddr_in dest;
if(!ip)
{
ERROR("Invalid IP address");
return -1;
}
if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
{
ERROR("Socket: %s", strerror(errno));
@ -638,6 +642,10 @@ char* ip_from_hostname(const char *hostname)
struct hostent *he;
struct in_addr **addr_list;
int i;
if(!hostname)
{
return NULL;
}
if ((he = gethostbyname(hostname)) == NULL)
{
// get the host info