-
Notifications
You must be signed in to change notification settings - Fork 3
/
f5pd.c
115 lines (98 loc) · 3.72 KB
/
f5pd.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
/* @f5pd.c
**
** fast5_pipeline server daemon
** @author: Hasindu Gamaarachchi ([email protected])
** @@
******************************************************************************/
/*
MIT License
Copyright (c) 2019 Hasindu Gamaarachchi
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
#include "error.h"
#include "f5pmisc.h"
#include "socket.h"
#include <errno.h>
#include <execinfo.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
//maximum limit for a file path
#define PATH_MAX 4096
//upper limit for the communication buffer
#define BUFFER_SIZE 4096
//hardcoded location of the pipeline script
#define SCRIPT "/nanopore/bin/fast5_pipeline.sh"
//port in which the deamon will listen
#define PORT 20022
void sig_handler(int sig) {
void* array[100];
size_t size = backtrace(array, 100);
ERROR("I regret to inform that a segmentation fault occurred. But at least "
"it is better than a wrong answer%s",
".");
fprintf(stderr,
"[%s::DEBUG]\033[1;35m Here is the backtrace in case it is of any "
"use:\n",
__func__);
backtrace_symbols_fd(&array[2], size - 1, STDERR_FILENO);
fprintf(stderr, "\033[0m\n");
exit(EXIT_FAILURE);
}
int main(int argc, char* argv[]) {
signal(SIGSEGV, sig_handler);
//buffer for communication
char buffer[BUFFER_SIZE];
//create a listening socket on port
int listenfd = TCP_server_init(PORT);
while (1) {
//accept a client connection
int connectfd = TCP_server_accept_client(listenfd);
//get message from client
int received = recv_full_msg(connectfd, buffer, BUFFER_SIZE);
//print the message
buffer[received] = '\0'; //null character before printing the string
INFO("Recieved %s.", buffer);
//some hidden quit method
if (strcmp(buffer, "quit!") == 0) {
return 0;
}
//execute the script
char command[PATH_MAX * 2];
sprintf(command, "%s %s", SCRIPT, buffer);
INFO("Command to be run %s.", command);
int pid = system_async(command);
int status = wait_async(pid);
//Copy a string to buffer
if (status == 0) { //successful execution
strcpy(buffer, "done.");
} else if (status == -1) { //terminated due to signal
strcpy(buffer, "crashed.");
} else if (status > 0) {
sprintf(buffer, "failed with exit status %d.", status);
}
//send a message to the client
send_full_msg(connectfd, buffer, strlen(buffer));
//close down the client connection
TCP_server_disconnect_client(connectfd);
}
//close the down the listening socket
TCP_server_shutdown(listenfd);
return 0;
}