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 5249d5a..92e0685 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) return res; } -void strbuf_attach(struct strbuf *sb, void *buf, size_t len, size_t alloc) -{ - strbuf_release(sb); - sb->buf = buf; - sb->len = len; - sb->alloc = alloc; - strbuf_grow(sb, 0); - sb->buf[sb->len] = '\0'; -} - void strbuf_grow(struct strbuf *sb, size_t extra) { if (sb->len + extra + 1 <= sb->len) @@ -60,94 +50,7 @@ void strbuf_grow(struct strbuf *sb, size_t extra) ALLOC_GROW(sb->buf, sb->len + extra + 1, sb->alloc); } -void strbuf_trim(struct strbuf *sb) -{ - char *b = sb->buf; - while (sb->len > 0 && isspace((unsigned char)sb->buf[sb->len - 1])) - sb->len--; - while (sb->len > 0 && isspace(*b)) { - b++; - sb->len--; - } - memmove(sb->buf, b, sb->len); - sb->buf[sb->len] = '\0'; -} -void strbuf_rtrim(struct strbuf *sb) -{ - while (sb->len > 0 && isspace((unsigned char)sb->buf[sb->len - 1])) - sb->len--; - sb->buf[sb->len] = '\0'; -} - -void strbuf_ltrim(struct strbuf *sb) -{ - char *b = sb->buf; - while (sb->len > 0 && isspace(*b)) { - b++; - sb->len--; - } - memmove(sb->buf, b, sb->len); - sb->buf[sb->len] = '\0'; -} - -void strbuf_tolower(struct strbuf *sb) -{ - unsigned int i; - - for (i = 0; i < sb->len; i++) - sb->buf[i] = tolower(sb->buf[i]); -} - -struct strbuf **strbuf_split(const struct strbuf *sb, int delim) -{ - int alloc = 2, pos = 0; - char *n, *p; - struct strbuf **ret; - struct strbuf *t; - - ret = calloc(alloc, sizeof(struct strbuf *)); - p = n = sb->buf; - while (n < sb->buf + sb->len) { - int len; - n = memchr(n, delim, sb->len - (n - sb->buf)); - if (pos + 1 >= alloc) { - alloc = alloc * 2; - ret = realloc(ret, sizeof(struct strbuf *) * alloc); - } - if (!n) - n = sb->buf + sb->len - 1; - len = n - p + 1; - t = malloc(sizeof(struct strbuf)); - strbuf_init(t, len); - strbuf_add(t, p, len); - ret[pos] = t; - ret[++pos] = NULL; - p = ++n; - } - return ret; -} - -void strbuf_list_free(struct strbuf **sbs) -{ - struct strbuf **s = sbs; - - while (*s) { - strbuf_release(*s); - free(*s++); - } - free(sbs); -} - -int strbuf_cmp(const struct strbuf *a, const struct strbuf *b) -{ - int len = a->len < b->len ? a->len: b->len; - int cmp = memcmp(a->buf, b->buf, len); - if (cmp) - return cmp; - return a->len < b->len ? -1: a->len != b->len; -} - -void strbuf_splice(struct strbuf *sb, size_t pos, size_t len, +static void strbuf_splice(struct strbuf *sb, size_t pos, size_t len, const void *data, size_t dlen) { if (pos + len < pos) @@ -166,11 +69,6 @@ void strbuf_splice(struct strbuf *sb, size_t pos, size_t len, strbuf_setlen(sb, sb->len + dlen - len); } -void strbuf_insert(struct strbuf *sb, size_t pos, const void *data, size_t len) -{ - strbuf_splice(sb, pos, 0, data, len); -} - void strbuf_remove(struct strbuf *sb, size_t pos, size_t len) { strbuf_splice(sb, pos, len, NULL, 0); @@ -183,13 +81,6 @@ void strbuf_add(struct strbuf *sb, const void *data, size_t len) strbuf_setlen(sb, sb->len + len); } -void strbuf_adddup(struct strbuf *sb, size_t pos, size_t len) -{ - strbuf_grow(sb, len); - memcpy(sb->buf + sb->len, sb->buf + pos, len); - strbuf_setlen(sb, sb->len + len); -} - void strbuf_addf(struct strbuf *sb, const char *fmt, ...) { int len; @@ -214,57 +105,6 @@ void strbuf_addf(struct strbuf *sb, const char *fmt, ...) strbuf_setlen(sb, sb->len + len); } -void strbuf_expand(struct strbuf *sb, const char *format, expand_fn_t fn, - void *context) -{ - for (;;) { - const char *percent; - size_t consumed; - - percent = strchrnul(format, '%'); - strbuf_add(sb, format, percent - format); - if (!*percent) - break; - format = percent + 1; - - consumed = fn(sb, format, context); - if (consumed) - format += consumed; - else - strbuf_addch(sb, '%'); - } -} - -size_t strbuf_expand_dict_cb(struct strbuf *sb, const char *placeholder, - void *context) -{ - struct strbuf_expand_dict_entry *e = context; - size_t len; - - for (; e->placeholder && (len = strlen(e->placeholder)); e++) { - if (!strncmp(placeholder, e->placeholder, len)) { - if (e->value) - strbuf_addstr(sb, e->value); - return len; - } - } - return 0; -} - -size_t strbuf_fread(struct strbuf *sb, size_t size, FILE *f) -{ - size_t res; - size_t oldalloc = sb->alloc; - - strbuf_grow(sb, size); - res = fread(sb->buf + sb->len, 1, size, f); - if (res > 0) - strbuf_setlen(sb, sb->len + res); - else if (oldalloc == 0) - strbuf_release(sb); - return res; -} - ssize_t strbuf_read(struct strbuf *sb, int fd, ssize_t hint) { size_t oldlen = sb->len; @@ -291,70 +131,3 @@ ssize_t strbuf_read(struct strbuf *sb, int fd, ssize_t hint) sb->buf[sb->len] = '\0'; return sb->len - oldlen; } - -#define STRBUF_MAXLINK (2*PATH_MAX) - -int strbuf_readlink(struct strbuf *sb, const char *path, ssize_t hint) -{ - size_t oldalloc = sb->alloc; - - if (hint < 32) - hint = 32; - - while (hint < STRBUF_MAXLINK) { - ssize_t len; - - strbuf_grow(sb, hint); - len = readlink(path, sb->buf, hint); - if (len < 0) { - if (errno != ERANGE) - break; - } else if (len < hint) { - strbuf_setlen(sb, len); - return 0; - } - - /* .. the buffer was too small - try again */ - hint *= 2; - } - if (oldalloc == 0) - strbuf_release(sb); - return -1; -} - -int strbuf_getline(struct strbuf *sb, FILE *fp, int term) -{ - int ch; - - strbuf_grow(sb, 0); - if (feof(fp)) - return EOF; - - strbuf_reset(sb); - while ((ch = fgetc(fp)) != EOF) { - if (ch == term) - break; - strbuf_grow(sb, 1); - sb->buf[sb->len++] = ch; - } - if (ch == EOF && sb->len == 0) - return EOF; - - sb->buf[sb->len] = '\0'; - return 0; -} - -int strbuf_read_file(struct strbuf *sb, const char *path, ssize_t hint) -{ - int fd, len; - - fd = open(path, O_RDONLY); - if (fd < 0) - return -1; - len = strbuf_read(sb, fd, hint); - close(fd); - if (len < 0) - return -1; - - return len; -} |