44 void strbuf_init(strbuf_t *s, int len)  in strbuf_init()  argument
53     s->buf = NULL;  in strbuf_init()
54     s->size = size;  in strbuf_init()
55     s->length = 0;  in strbuf_init()
56     s->increment = STRBUF_DEFAULT_INCREMENT;  in strbuf_init()
57     s->dynamic = 0;  in strbuf_init()
58     s->reallocs = 0;  in strbuf_init()
59     s->debug = 0;  in strbuf_init()
61     s->buf = malloc(size);  in strbuf_init()
62     if (!s->buf)  in strbuf_init()
65     strbuf_ensure_null(s);  in strbuf_init()
70     strbuf_t *s;  in strbuf_new()  local
72     s = malloc(sizeof(strbuf_t));  in strbuf_new()
73     if (!s)  in strbuf_new()
76     strbuf_init(s, len);  in strbuf_new()
79     s->dynamic = 1;  in strbuf_new()
81     return s;  in strbuf_new()
84 void strbuf_set_increment(strbuf_t *s, int increment)  in strbuf_set_increment()  argument
91     s->increment = increment;  in strbuf_set_increment()
94 static inline void debug_stats(strbuf_t *s)  in debug_stats()  argument
96     if (s->debug) {  in debug_stats()
98                 (long)s, s->reallocs, s->length, s->size);  in debug_stats()
104 void strbuf_free(strbuf_t *s)  in strbuf_free()  argument
106     debug_stats(s);  in strbuf_free()
108     if (s->buf) {  in strbuf_free()
109         free(s->buf);  in strbuf_free()
110         s->buf = NULL;  in strbuf_free()
112     if (s->dynamic)  in strbuf_free()
113         free(s);  in strbuf_free()
116 char *strbuf_free_to_string(strbuf_t *s, int *len)  in strbuf_free_to_string()  argument
120     debug_stats(s);  in strbuf_free_to_string()
122     strbuf_ensure_null(s);  in strbuf_free_to_string()
124     buf = s->buf;  in strbuf_free_to_string()
126         *len = s->length;  in strbuf_free_to_string()
128     if (s->dynamic)  in strbuf_free_to_string()
129         free(s);  in strbuf_free_to_string()
134 static int calculate_new_size(strbuf_t *s, int len)  in calculate_new_size()  argument
145     if (s->size > reqsize)  in calculate_new_size()
148     newsize = s->size;  in calculate_new_size()
149     if (s->increment < 0) {  in calculate_new_size()
152             newsize *= -s->increment;  in calculate_new_size()
155         newsize = ((newsize + s->increment - 1) / s->increment) * s->increment;  in calculate_new_size()
164 void strbuf_resize(strbuf_t *s, int len)  in strbuf_resize()  argument
168     newsize = calculate_new_size(s, len);  in strbuf_resize()
170     if (s->debug > 1) {  in strbuf_resize()
172                 (long)s, s->size, newsize);  in strbuf_resize()
175     s->size = newsize;  in strbuf_resize()
176     s->buf = realloc(s->buf, s->size);  in strbuf_resize()
177     if (!s->buf)  in strbuf_resize()
179     s->reallocs++;  in strbuf_resize()
182 void strbuf_append_string(strbuf_t *s, const char *str)  in strbuf_append_string()  argument
186     space = strbuf_empty_length(s);  in strbuf_append_string()
190             strbuf_resize(s, s->length + 1);  in strbuf_append_string()
191             space = strbuf_empty_length(s);  in strbuf_append_string()
194         s->buf[s->length] = str[i];  in strbuf_append_string()
195         s->length++;  in strbuf_append_string()
202 void strbuf_append_fmt(strbuf_t *s, int len, const char *fmt, ...)  in strbuf_append_fmt()  argument
207     strbuf_ensure_empty_length(s, len);  in strbuf_append_fmt()
210     fmt_len = vsnprintf(s->buf + s->length, len, fmt, arg);  in strbuf_append_fmt()
216     s->length += fmt_len;  in strbuf_append_fmt()
221 void strbuf_append_fmt_retry(strbuf_t *s, const char *fmt, ...)  in strbuf_append_fmt_retry()  argument
234         empty_len = strbuf_empty_length(s);  in strbuf_append_fmt_retry()
236         fmt_len = vsnprintf(s->buf + s->length, empty_len + 1, fmt, arg);  in strbuf_append_fmt_retry()
244         strbuf_resize(s, s->length + fmt_len);  in strbuf_append_fmt_retry()
247     s->length += fmt_len;  in strbuf_append_fmt_retry()