mempool_t *create_mempool(size_t alloc_size, size_t pool_size) {
#ifdef DIAGNOSTICS
printf("creating mempool alloc size %lu pool size %lu\n", alloc_size, pool_size);
#endif
mempool_t *pool = malloc(sizeof(mempool_t));
if (!pool)
err_oom("mempool_create");
pool->next = NULL;
pool->alloc_size = alloc_size;
pool->pool_size = pool_size;
pool->mem_start = calloc(alloc_size, pool_size);
if (!pool->mem_start)
err_oom("mempool_create");
pool->mem_end = pool->mem_start + alloc_size*pool_size;
pool->alloc_ptr = pool->mem_start;
pool->free_spots_size = 0;
pool->free_spots_res = 128;
pool->free_spots = calloc(sizeof(void*), pool->free_spots_res);
if (!pool->free_spots)
err_oom("mempool_create");
return pool;
}
static void add_structured_data_param(struct list_head *ls, const char *param)
{
struct structured_data *sd;
if (list_empty(ls))
errx(EXIT_FAILURE, _("--sd-id was not specified for --sd-param %s"), param);
assert(param);
sd = list_last_entry(ls, struct structured_data, sds);
if (strv_extend(&sd->params, param))
err_oom();
}
int main(int argc, char *argv[])
{
struct libscols_table *tb;
struct libscols_symbols *sy;
struct libscols_cell *title;
setlocale(LC_ALL, ""); /* just to have enable UTF8 chars */
scols_init_debug(0);
tb = scols_new_table();
if (!tb)
err(EXIT_FAILURE, "failed to create output table");
scols_table_enable_colors(tb, isatty(STDOUT_FILENO));
setup_columns(tb);
add_line(tb, "foo", "bla bla bla");
add_line(tb, "bar", "alb alb alb");
title = scols_table_get_title(tb);
/* right */
scols_cell_set_data(title, "This is right title");
scols_cell_set_color(title, "red");
scols_cell_set_flags(title, SCOLS_CELL_FL_RIGHT);
scols_print_table(tb);
/* center */
sy = scols_new_symbols();
if (!sy)
err_oom();
scols_table_set_symbols(tb, sy);
scols_symbols_set_title_padding(sy, "=");
scols_cell_set_data(title, "This is center title (with padding)");
scols_cell_set_color(title, "green");
scols_cell_set_flags(title, SCOLS_CELL_FL_CENTER);
scols_print_table(tb);
/* left */
scols_symbols_set_title_padding(sy, "-");
scols_cell_set_data(title, "This is left title (with padding)");
scols_cell_set_color(title, "blue");
scols_cell_set_flags(title, SCOLS_CELL_FL_LEFT);
scols_print_table(tb);
scols_unref_table(tb);
return EXIT_SUCCESS;
}
static void add_structured_data_paramf(struct list_head *ls, const char *fmt, ...)
{
struct structured_data *sd;
va_list ap;
int x;
assert(!list_empty(ls));
assert(fmt);
sd = list_last_entry(ls, struct structured_data, sds);
va_start(ap, fmt);
x = strv_extendv(&sd->params, fmt, ap);
va_end(ap);
if (x)
err_oom();
}
void mempool_free(mempool_t *pool, void *ptr) {
/* Check if the pointer is in this pool */
if (pool->mem_start <= (char*)ptr && (char*)ptr <= pool->mem_end) {
if (pool->free_spots_size == pool->free_spots_res) {
size_t new_size = 2*sizeof(char*)*pool->free_spots_res;
char **new_arr = realloc(pool->free_spots, new_size);
if (!new_arr)
err_oom("mempool_free");
pool->free_spots = new_arr;
pool->free_spots_res *= 2;
}
pool->free_spots[pool->free_spots_size] = ptr;
pool->free_spots_size++;
return;
} else if (pool->next) {
mempool_free(pool->next, ptr);
return;
} else {
fprintf(stderr, "tried to mempool_free a pointer not in the memory pool!\n");
exit(EXIT_FAILURE);
}
}
int main(int argc, char *argv[])
{
struct libscols_table *tb;
struct libscols_symbols *sy;
struct libscols_cell *title;
int c;
static const struct option longopts[] = {
{ "maxout", 0, NULL, 'm' },
{ "width", 1, NULL, 'w' },
{ NULL, 0, NULL, 0 },
};
setlocale(LC_ALL, ""); /* just to have enable UTF8 chars */
scols_init_debug(0);
tb = scols_new_table();
if (!tb)
err(EXIT_FAILURE, "failed to create output table");
while((c = getopt_long(argc, argv, "mw:", longopts, NULL)) != -1) {
switch(c) {
case 'm':
scols_table_enable_maxout(tb, TRUE);
break;
case 'w':
scols_table_set_termforce(tb, SCOLS_TERMFORCE_ALWAYS);
scols_table_set_termwidth(tb, strtou32_or_err(optarg, "failed to parse terminal width"));
break;
}
}
scols_table_enable_colors(tb, isatty(STDOUT_FILENO));
setup_columns(tb);
add_line(tb, "foo", "bla bla bla");
add_line(tb, "bar", "alb alb alb");
title = scols_table_get_title(tb);
/* right */
scols_cell_set_data(title, "This is right title");
scols_cell_set_color(title, "red");
scols_cell_set_flags(title, SCOLS_CELL_FL_RIGHT);
scols_print_table(tb);
/* center */
sy = scols_new_symbols();
if (!sy)
err_oom();
scols_table_set_symbols(tb, sy);
scols_symbols_set_title_padding(sy, "=");
scols_cell_set_data(title, "This is center title (with padding)");
scols_cell_set_color(title, "green");
scols_cell_set_flags(title, SCOLS_CELL_FL_CENTER);
scols_print_table(tb);
/* left */
scols_symbols_set_title_padding(sy, "-");
scols_cell_set_data(title, "This is left title (with padding)");
scols_cell_set_color(title, "blue");
scols_cell_set_flags(title, SCOLS_CELL_FL_LEFT);
scols_print_table(tb);
scols_unref_table(tb);
return EXIT_SUCCESS;
}
