diff options
Diffstat (limited to 'tools/perf/util/strbuf.c')
-rw-r--r-- | tools/perf/util/strbuf.c | 229 |
1 files changed, 1 insertions, 228 deletions
diff --git a/tools/perf/util/strbuf.c b/tools/perf/util/strbuf.c index 5249d5a1b0c2..92e068517c1a 100644 --- a/tools/perf/util/strbuf.c +++ b/tools/perf/util/strbuf.c | |||
@@ -41,16 +41,6 @@ char *strbuf_detach(struct strbuf *sb, size_t *sz) | |||
41 | return res; | 41 | return res; |
42 | } | 42 | } |
43 | 43 | ||
44 | void strbuf_attach(struct strbuf *sb, void *buf, size_t len, size_t alloc) | ||
45 | { | ||
46 | strbuf_release(sb); | ||
47 | sb->buf = buf; | ||
48 | sb->len = len; | ||
49 | sb->alloc = alloc; | ||
50 | strbuf_grow(sb, 0); | ||
51 | sb->buf[sb->len] = '\0'; | ||
52 | } | ||
53 | |||
54 | void strbuf_grow(struct strbuf *sb, size_t extra) | 44 | void strbuf_grow(struct strbuf *sb, size_t extra) |
55 | { | 45 | { |
56 | if (sb->len + extra + 1 <= sb->len) | 46 | if (sb->len + extra + 1 <= sb->len) |
@@ -60,94 +50,7 @@ void strbuf_grow(struct strbuf *sb, size_t extra) | |||
60 | ALLOC_GROW(sb->buf, sb->len + extra + 1, sb->alloc); | 50 | ALLOC_GROW(sb->buf, sb->len + extra + 1, sb->alloc); |
61 | } | 51 | } |
62 | 52 | ||
63 | void strbuf_trim(struct strbuf *sb) | 53 | static void strbuf_splice(struct strbuf *sb, size_t pos, size_t len, |
64 | { | ||
65 | char *b = sb->buf; | ||
66 | while (sb->len > 0 && isspace((unsigned char)sb->buf[sb->len - 1])) | ||
67 | sb->len--; | ||
68 | while (sb->len > 0 && isspace(*b)) { | ||
69 | b++; | ||
70 | sb->len--; | ||
71 | } | ||
72 | memmove(sb->buf, b, sb->len); | ||
73 | sb->buf[sb->len] = '\0'; | ||
74 | } | ||
75 | void strbuf_rtrim(struct strbuf *sb) | ||
76 | { | ||
77 | while (sb->len > 0 && isspace((unsigned char)sb->buf[sb->len - 1])) | ||
78 | sb->len--; | ||
79 | sb->buf[sb->len] = '\0'; | ||
80 | } | ||
81 | |||
82 | void strbuf_ltrim(struct strbuf *sb) | ||
83 | { | ||
84 | char *b = sb->buf; | ||
85 | while (sb->len > 0 && isspace(*b)) { | ||
86 | b++; | ||
87 | sb->len--; | ||
88 | } | ||
89 | memmove(sb->buf, b, sb->len); | ||
90 | sb->buf[sb->len] = '\0'; | ||
91 | } | ||
92 | |||
93 | void strbuf_tolower(struct strbuf *sb) | ||
94 | { | ||
95 | unsigned int i; | ||
96 | |||
97 | for (i = 0; i < sb->len; i++) | ||
98 | sb->buf[i] = tolower(sb->buf[i]); | ||
99 | } | ||
100 | |||
101 | struct strbuf **strbuf_split(const struct strbuf *sb, int delim) | ||
102 | { | ||
103 | int alloc = 2, pos = 0; | ||
104 | char *n, *p; | ||
105 | struct strbuf **ret; | ||
106 | struct strbuf *t; | ||
107 | |||
108 | ret = calloc(alloc, sizeof(struct strbuf *)); | ||
109 | p = n = sb->buf; | ||
110 | while (n < sb->buf + sb->len) { | ||
111 | int len; | ||
112 | n = memchr(n, delim, sb->len - (n - sb->buf)); | ||
113 | if (pos + 1 >= alloc) { | ||
114 | alloc = alloc * 2; | ||
115 | ret = realloc(ret, sizeof(struct strbuf *) * alloc); | ||
116 | } | ||
117 | if (!n) | ||
118 | n = sb->buf + sb->len - 1; | ||
119 | len = n - p + 1; | ||
120 | t = malloc(sizeof(struct strbuf)); | ||
121 | strbuf_init(t, len); | ||
122 | strbuf_add(t, p, len); | ||
123 | ret[pos] = t; | ||
124 | ret[++pos] = NULL; | ||
125 | p = ++n; | ||
126 | } | ||
127 | return ret; | ||
128 | } | ||
129 | |||
130 | void strbuf_list_free(struct strbuf **sbs) | ||
131 | { | ||
132 | struct strbuf **s = sbs; | ||
133 | |||
134 | while (*s) { | ||
135 | strbuf_release(*s); | ||
136 | free(*s++); | ||
137 | } | ||
138 | free(sbs); | ||
139 | } | ||
140 | |||
141 | int strbuf_cmp(const struct strbuf *a, const struct strbuf *b) | ||
142 | { | ||
143 | int len = a->len < b->len ? a->len: b->len; | ||
144 | int cmp = memcmp(a->buf, b->buf, len); | ||
145 | if (cmp) | ||
146 | return cmp; | ||
147 | return a->len < b->len ? -1: a->len != b->len; | ||
148 | } | ||
149 | |||
150 | void strbuf_splice(struct strbuf *sb, size_t pos, size_t len, | ||
151 | const void *data, size_t dlen) | 54 | const void *data, size_t dlen) |
152 | { | 55 | { |
153 | if (pos + len < pos) | 56 | if (pos + len < pos) |
@@ -166,11 +69,6 @@ void strbuf_splice(struct strbuf *sb, size_t pos, size_t len, | |||
166 | strbuf_setlen(sb, sb->len + dlen - len); | 69 | strbuf_setlen(sb, sb->len + dlen - len); |
167 | } | 70 | } |
168 | 71 | ||
169 | void strbuf_insert(struct strbuf *sb, size_t pos, const void *data, size_t len) | ||
170 | { | ||
171 | strbuf_splice(sb, pos, 0, data, len); | ||
172 | } | ||
173 | |||
174 | void strbuf_remove(struct strbuf *sb, size_t pos, size_t len) | 72 | void strbuf_remove(struct strbuf *sb, size_t pos, size_t len) |
175 | { | 73 | { |
176 | strbuf_splice(sb, pos, len, NULL, 0); | 74 | strbuf_splice(sb, pos, len, NULL, 0); |
@@ -183,13 +81,6 @@ void strbuf_add(struct strbuf *sb, const void *data, size_t len) | |||
183 | strbuf_setlen(sb, sb->len + len); | 81 | strbuf_setlen(sb, sb->len + len); |
184 | } | 82 | } |
185 | 83 | ||
186 | void strbuf_adddup(struct strbuf *sb, size_t pos, size_t len) | ||
187 | { | ||
188 | strbuf_grow(sb, len); | ||
189 | memcpy(sb->buf + sb->len, sb->buf + pos, len); | ||
190 | strbuf_setlen(sb, sb->len + len); | ||
191 | } | ||
192 | |||
193 | void strbuf_addf(struct strbuf *sb, const char *fmt, ...) | 84 | void strbuf_addf(struct strbuf *sb, const char *fmt, ...) |
194 | { | 85 | { |
195 | int len; | 86 | int len; |
@@ -214,57 +105,6 @@ void strbuf_addf(struct strbuf *sb, const char *fmt, ...) | |||
214 | strbuf_setlen(sb, sb->len + len); | 105 | strbuf_setlen(sb, sb->len + len); |
215 | } | 106 | } |
216 | 107 | ||
217 | void strbuf_expand(struct strbuf *sb, const char *format, expand_fn_t fn, | ||
218 | void *context) | ||
219 | { | ||
220 | for (;;) { | ||
221 | const char *percent; | ||
222 | size_t consumed; | ||
223 | |||
224 | percent = strchrnul(format, '%'); | ||
225 | strbuf_add(sb, format, percent - format); | ||
226 | if (!*percent) | ||
227 | break; | ||
228 | format = percent + 1; | ||
229 | |||
230 | consumed = fn(sb, format, context); | ||
231 | if (consumed) | ||
232 | format += consumed; | ||
233 | else | ||
234 | strbuf_addch(sb, '%'); | ||
235 | } | ||
236 | } | ||
237 | |||
238 | size_t strbuf_expand_dict_cb(struct strbuf *sb, const char *placeholder, | ||
239 | void *context) | ||
240 | { | ||
241 | struct strbuf_expand_dict_entry *e = context; | ||
242 | size_t len; | ||
243 | |||
244 | for (; e->placeholder && (len = strlen(e->placeholder)); e++) { | ||
245 | if (!strncmp(placeholder, e->placeholder, len)) { | ||
246 | if (e->value) | ||
247 | strbuf_addstr(sb, e->value); | ||
248 | return len; | ||
249 | } | ||
250 | } | ||
251 | return 0; | ||
252 | } | ||
253 | |||
254 | size_t strbuf_fread(struct strbuf *sb, size_t size, FILE *f) | ||
255 | { | ||
256 | size_t res; | ||
257 | size_t oldalloc = sb->alloc; | ||
258 | |||
259 | strbuf_grow(sb, size); | ||
260 | res = fread(sb->buf + sb->len, 1, size, f); | ||
261 | if (res > 0) | ||
262 | strbuf_setlen(sb, sb->len + res); | ||
263 | else if (oldalloc == 0) | ||
264 | strbuf_release(sb); | ||
265 | return res; | ||
266 | } | ||
267 | |||
268 | ssize_t strbuf_read(struct strbuf *sb, int fd, ssize_t hint) | 108 | ssize_t strbuf_read(struct strbuf *sb, int fd, ssize_t hint) |
269 | { | 109 | { |
270 | size_t oldlen = sb->len; | 110 | size_t oldlen = sb->len; |
@@ -291,70 +131,3 @@ ssize_t strbuf_read(struct strbuf *sb, int fd, ssize_t hint) | |||
291 | sb->buf[sb->len] = '\0'; | 131 | sb->buf[sb->len] = '\0'; |
292 | return sb->len - oldlen; | 132 | return sb->len - oldlen; |
293 | } | 133 | } |
294 | |||
295 | #define STRBUF_MAXLINK (2*PATH_MAX) | ||
296 | |||
297 | int strbuf_readlink(struct strbuf *sb, const char *path, ssize_t hint) | ||
298 | { | ||
299 | size_t oldalloc = sb->alloc; | ||
300 | |||
301 | if (hint < 32) | ||
302 | hint = 32; | ||
303 | |||
304 | while (hint < STRBUF_MAXLINK) { | ||
305 | ssize_t len; | ||
306 | |||
307 | strbuf_grow(sb, hint); | ||
308 | len = readlink(path, sb->buf, hint); | ||
309 | if (len < 0) { | ||
310 | if (errno != ERANGE) | ||
311 | break; | ||
312 | } else if (len < hint) { | ||
313 | strbuf_setlen(sb, len); | ||
314 | return 0; | ||
315 | } | ||
316 | |||
317 | /* .. the buffer was too small - try again */ | ||
318 | hint *= 2; | ||
319 | } | ||
320 | if (oldalloc == 0) | ||
321 | strbuf_release(sb); | ||
322 | return -1; | ||
323 | } | ||
324 | |||
325 | int strbuf_getline(struct strbuf *sb, FILE *fp, int term) | ||
326 | { | ||
327 | int ch; | ||
328 | |||
329 | strbuf_grow(sb, 0); | ||
330 | if (feof(fp)) | ||
331 | return EOF; | ||
332 | |||
333 | strbuf_reset(sb); | ||
334 | while ((ch = fgetc(fp)) != EOF) { | ||
335 | if (ch == term) | ||
336 | break; | ||
337 | strbuf_grow(sb, 1); | ||
338 | sb->buf[sb->len++] = ch; | ||
339 | } | ||
340 | if (ch == EOF && sb->len == 0) | ||
341 | return EOF; | ||
342 | |||
343 | sb->buf[sb->len] = '\0'; | ||
344 | return 0; | ||
345 | } | ||
346 | |||
347 | int strbuf_read_file(struct strbuf *sb, const char *path, ssize_t hint) | ||
348 | { | ||
349 | int fd, len; | ||
350 | |||
351 | fd = open(path, O_RDONLY); | ||
352 | if (fd < 0) | ||
353 | return -1; | ||
354 | len = strbuf_read(sb, fd, hint); | ||
355 | close(fd); | ||
356 | if (len < 0) | ||
357 | return -1; | ||
358 | |||
359 | return len; | ||
360 | } | ||