summaryrefslogtreecommitdiff
path: root/parsing.c
blob: 4ef3fb71f54dc2f1b32b54684fdfd5e8033ba1d9 (plain)
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
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
#include <stdio.h>
#include <string.h>
#include <wctype.h>
#include <wchar.h>
#include <pthread.h>

#include "parsing.h"
#include "channel.h"
#include "user.h"
#include "word.h"
#include "export_xml.h"
#include "config.h"

#define NICK_BUFFER_SIZE 0x100
#define TEXT_BUFFER_SIZE 0x400
#define LINE_BUFFER_SIZE 0x400
#define TIME_BUFFER_SIZE 0xf

static pthread_mutex_t user_mutex, word_mutex, channel_mutex;

static struct user_t *last_user = NULL;
static int in_monolog = 0, monolog_len = 0;

static inline void add_word(struct user_t *user, wchar_t *word, int len) {
	pthread_mutex_lock(&user_mutex);
	user->words++;
	pthread_mutex_unlock(&user_mutex);
	word[len] = '\0';
	char mbword[TEXT_BUFFER_SIZE];
	wcstombs(mbword, word, TEXT_BUFFER_SIZE);
	pthread_mutex_lock(&word_mutex);
	struct word_t *word_s = word_get(mbword);
	word_s->count++;
	pthread_mutex_unlock(&word_mutex);
}

static void process_file(FILE *f, struct channel_t *channel, struct regexset_t *rs) {
	char line[LINE_BUFFER_SIZE];

	while(fgets(line, LINE_BUFFER_SIZE, f)) {
		int rc;
		int ovector[30];

		rc = pcre_exec(rs->text, rs->text_e, line, strlen(line), 0, 0, ovector, 30);
		if(rc > 0) {
			char nick[NICK_BUFFER_SIZE], text[TEXT_BUFFER_SIZE], hour_s[TIME_BUFFER_SIZE], min_s[TIME_BUFFER_SIZE];
			pcre_copy_named_substring(rs->text, line, ovector, rc, "nick", nick, NICK_BUFFER_SIZE);
			pcre_copy_named_substring(rs->text, line, ovector, rc, "text", text, TEXT_BUFFER_SIZE);
			pcre_copy_named_substring(rs->text, line, ovector, rc, "hour", hour_s, TIME_BUFFER_SIZE);
			pcre_copy_named_substring(rs->text, line, ovector, rc, "minute", min_s, TIME_BUFFER_SIZE);
			pthread_mutex_lock(&user_mutex);
			struct user_t *user = user_get(nick);
			if(user == last_user) {
				monolog_len++;
				if(!in_monolog && monolog_len >= ircstats_config.monolog_min) {
					in_monolog = 1;
					user->monologs++;
					/* Count first lines. */
					user->monolog_lines += monolog_len;
				} else if(in_monolog) {
					user->monolog_lines++;
				}
			} else {
				last_user = user;
				in_monolog = 0;
				monolog_len = 1;
			}
			pthread_mutex_unlock(&user_mutex);

			/* Calculate array index for lines. */
			int hour, min, time_i;
			hour = atoi(hour_s);
			min = atoi(min_s);
			time_i = hour*4 + min / 15;

			/* Count words. */
			wchar_t wtext[TEXT_BUFFER_SIZE];
			mbstowcs(wtext, text, TEXT_BUFFER_SIZE);

			pthread_mutex_lock(&user_mutex);
			user->characters += wcslen(wtext);
			user->lines[time_i]++;
			pthread_mutex_unlock(&user_mutex);

			pthread_mutex_lock(&channel_mutex);
			channel->hours[time_i]++;
			pthread_mutex_unlock(&channel_mutex);

			wchar_t word[TEXT_BUFFER_SIZE];
			wchar_t *end = wcschr(wtext, '\0');
			*word = '\0';
			int len = 0;
			for(wchar_t *pos = wtext; pos < end; pos++) {
				if(iswblank(*pos)) {
					if(len >= ircstats_config.wordlen_min) {
						add_word(user, word, len);
					}
					len = 0;
					*word = '\0';
				} else if(iswalpha(*pos)) {
					word[len++] = towlower(*pos);
				} else {
					len = 0;
					*word = '\0';
				}
			}
			if(len >= ircstats_config.wordlen_min) {
				add_word(user, word, len);
			}
			continue;
		}

		rc = pcre_exec(rs->join, rs->join_e, line, strlen(line), 0, 0, ovector, 30);
		if(rc > 0) {
			char nick[NICK_BUFFER_SIZE];
			pcre_copy_named_substring(rs->join, line, ovector, rc, "nick", nick, NICK_BUFFER_SIZE);
			pthread_mutex_lock(&user_mutex);
			struct user_t *user = user_get(nick);
			pthread_mutex_unlock(&user_mutex);
			continue;
		}

		rc = pcre_exec(rs->kick, rs->kick_e, line, strlen(line), 0, 0, ovector, 30);
		if(rc > 0) {
			char nick[NICK_BUFFER_SIZE], victim[NICK_BUFFER_SIZE];
			pcre_copy_named_substring(rs->kick, line, ovector, rc, "nick", nick, NICK_BUFFER_SIZE);
			pcre_copy_named_substring(rs->kick, line, ovector, rc, "victim", victim, NICK_BUFFER_SIZE);
			pthread_mutex_lock(&user_mutex);
			struct user_t *user = user_get(nick),
				*victim_user = user_get(victim);
			user->kicks++;
			victim_user->kicked++;
			pthread_mutex_unlock(&user_mutex);
			continue;
		}
	}
}

struct thread_arg_t {
	FILE *f;
	struct channel_t *channel;
	struct regexset_t *rs;
};

static void *thread_func(void *arg) {
	struct thread_arg_t *ta = arg;
	process_file(ta->f, ta->channel, ta->rs);
}

void process(int thread_n) {
	pthread_mutex_init(&user_mutex, NULL);
	pthread_mutex_init(&word_mutex, NULL);
	pthread_mutex_init(&channel_mutex, NULL);
	/* Parsing stuff goes here. */
	for(int chan_i = 0; chan_i < channel_get_count(); chan_i++) {
		user_init();
		word_init();
		struct channel_t *channel = channel_get(chan_i);
		printf("Channel %s\n", channel->name);
		struct channel_file_t *file = channel->files;
		while(file) {
			struct regexset_t *rs = file->rs;
			FILE *f = fopen(file->path, "r");
			if(!f) {
				fprintf(stderr, "\tFailed to open %s\n", file->path);
				file = file->next;
				continue;
			} else
				printf("\tParsing %s\n", file->path);

			last_user = NULL;
			in_monolog = monolog_len = 0;

			pthread_t *threads;
			threads = malloc(sizeof(pthread_t) * thread_n);
			struct thread_arg_t ta;
			ta.f = f;
			ta.channel = channel;
			ta.rs = rs;
			for(int i = 0; i < thread_n; i++) {
				pthread_create(&threads[i], NULL, thread_func, &ta);
			}
			for(int i = 0; i < thread_n; i++) {
				pthread_join(threads[i], NULL);
			}
			free(threads);

			fclose(f);
			file = file->next;
		}
		export_xml(channel, users);
		user_free();
		word_free();
	}
	pthread_mutex_destroy(&user_mutex);
	pthread_mutex_destroy(&word_mutex);
	pthread_mutex_destroy(&channel_mutex);
}