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-rw-r--r--accel-dpdk/CMakeLists.txt6
-rw-r--r--accel-dpdk/conf_file.c354
-rw-r--r--accel-dpdk/conf_file.h23
3 files changed, 382 insertions, 1 deletions
diff --git a/accel-dpdk/CMakeLists.txt b/accel-dpdk/CMakeLists.txt
index 14913bd..87aa600 100644
--- a/accel-dpdk/CMakeLists.txt
+++ b/accel-dpdk/CMakeLists.txt
@@ -5,7 +5,11 @@ find_library(rte_malloc NAMES librte_malloc.a PATHS ${DPDK}/build/lib)
find_library(rte_mempool NAMES librte_mempool.a PATHS ${DPDK}/build/lib)
find_library(rte_ring NAMES librte_ring.a PATHS ${DPDK}/build/lib)
-add_executable(accel-dpdk main.c)
+add_executable(accel-dpdk
+ main.c
+ conf_file.c
+)
+
target_link_libraries(accel-dpdk dl pthread
-Wl,-whole-archive
${rte_eal}
diff --git a/accel-dpdk/conf_file.c b/accel-dpdk/conf_file.c
new file mode 100644
index 0000000..d448b13
--- /dev/null
+++ b/accel-dpdk/conf_file.c
@@ -0,0 +1,354 @@
+#include <string.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+#include "conf_file.h"
+
+struct conf_ctx {
+ const char *fname;
+ FILE *file;
+ int line;
+ struct conf_opt **list;
+ int options:1;
+};
+
+static struct conf_sect *sect_head;
+static struct conf_sect *sect_tail;
+
+static char* skip_space(char *str);
+static char* skip_word(char *str);
+
+static struct conf_sect *find_sect(const char *name);
+static struct conf_sect *create_sect(const char *name);
+static int sect_add_item(struct conf_ctx *ctx, const char *name, char *val, char *raw);
+static struct conf_opt *find_item(struct conf_sect *, const char *name);
+static int load_file(struct conf_ctx *ctx);
+
+static char *buf;
+static struct conf_sect *cur_sect;
+
+static int open_ctx(struct conf_ctx *ctx, const char *fname, struct conf_opt **list)
+{
+ ctx->file = fopen(fname, "r");
+ if (!ctx->file)
+ return -1;
+
+ ctx->fname = fname;
+ ctx->line = 0;
+ ctx->list = ctx->list;
+ ctx->options = 0;
+
+ return 0;
+}
+
+static void close_ctx(struct conf_ctx *ctx)
+{
+ fclose(ctx->file);
+}
+
+static int load_file(struct conf_ctx *ctx)
+{
+ char *str, *str2, *raw;
+ int len;
+
+ while(1) {
+ if (!fgets(buf, 1024, ctx->file))
+ break;
+ ctx->line++;
+
+ len = strlen(buf);
+ if (buf[len - 1] == '\n')
+ buf[--len] = 0;
+
+ while (len && (buf[len - 1] == ' ' || buf[len - 1] == '\t'))
+ buf[--len] = 0;
+
+ str = skip_space(buf);
+ if (*str == '#' || *str == 0)
+ continue;
+
+ if (strncmp(str, "$include", 8) == 0) {
+ struct conf_ctx ctx1;
+ int r;
+ str = skip_word(str);
+ str = skip_space(str);
+
+ if (open_ctx(&ctx1, str, ctx->list))
+ break;
+
+ r = load_file(&ctx1);
+
+ close_ctx(&ctx1);
+
+ if (r)
+ break;
+
+ ctx->list = ctx1.list;
+
+ continue;
+ }
+
+ if (*str == '[') {
+ for (str2 = ++str; *str2 && *str2 != ']'; str2++);
+ if (*str2 != ']') {
+ fprintf(stderr, "conf_file:%s:%i: sintax error\n", ctx->fname, ctx->line);
+ return -1;
+ }
+
+ if (ctx->options) {
+ fprintf(stderr, "conf_file:%s:%i: cann't open section inside option\n", ctx->fname, ctx->line);
+ return -1;
+ }
+
+ *str2 = 0;
+ cur_sect = find_sect(str);
+ if (!cur_sect)
+ cur_sect = create_sect(str);
+ ctx->list = (struct conf_opt **)&cur_sect->opt;
+ continue;
+ }
+
+ if (!cur_sect) {
+ fprintf(stderr, "conf_file:%s:%i: no section opened\n", ctx->fname, ctx->line);
+ return -1;
+ }
+
+ if (*str == '}') {
+ if (ctx->options)
+ return 0;
+
+ fprintf(stderr, "conf_file:%s:%i: sintax error\n", ctx->fname, ctx->line);
+ return -1;
+ }
+
+ raw = strdup(str);
+ str2 = skip_word(str);
+ if (*str2 == ' ') {
+ *str2 = 0;
+ ++str2;
+ }
+
+ str2 = skip_space(str2);
+ if (*str2 == '=' || *str2 == ',') {
+ *str2 = 0;
+ str2 = skip_space(str2 + 1);
+ if (*str2 && *(str2 + 1) && *str2 == '$' && *(str2 + 1) == '{') {
+ char *s;
+ struct conf_opt *opt;
+ for (s = str2 + 2; *s && *s != '}'; s++);
+ if (*s == '}') {
+ *s = 0;
+ str2 += 2;
+ }
+ opt = find_item(cur_sect, str2);
+ if (!opt) {
+ fprintf(stderr, "conf_file:%s:%i: parent option not found\n", ctx->fname, ctx->line);
+ return -1;
+ }
+ str2 = (char *)opt->val;
+ }
+ } else
+ str2 = NULL;
+
+ if (sect_add_item(ctx, str, str2, raw))
+ return -1;
+ }
+
+ return 0;
+}
+
+/*static void print_items(struct list_head *items, int dep)
+{
+ struct conf_option_t *opt;
+ int i;
+
+ list_for_each_entry(opt, items, entry) {
+ for (i = 0; i < dep; i++)
+ printf("\t");
+ printf("%s=%s\n", opt->name, opt->val);
+ print_items(&opt->items, dep + 1);
+ }
+}
+
+static void print_conf()
+{
+ struct sect_t *s;
+
+ list_for_each_entry(s, &sections, entry) {
+ printf("[%s]\n", s->sect->name);
+ print_items(&s->sect->items, 0);
+ }
+}*/
+
+static void free_items(struct conf_opt *opt)
+{
+ struct conf_opt *next;
+
+ for (next = opt->next; opt; opt = next) {
+ if (opt->child)
+ free_items(opt->child);
+ free(opt->name);
+ free(opt->raw);
+ if (opt->val)
+ free(opt->val);
+ free((void *)opt);
+ }
+}
+
+static void conf_clear(struct conf_sect *s)
+{
+ struct conf_sect *next;
+
+ for (next = s->next; s; s = next) {
+ if (s->opt)
+ free_items(s->opt);
+ free(s->name);
+ free((void *)s);
+ }
+}
+
+int conf_file_load(const char *fname)
+{
+ struct conf_sect *head = sect_head;
+ struct conf_ctx ctx;
+ int r;
+
+ if (open_ctx(&ctx, fname, NULL))
+ return -1;
+
+ cur_sect = NULL;
+ sect_head = NULL;
+
+ buf = malloc(1024);
+
+ r = load_file(&ctx);
+
+ free(buf);
+
+ close_ctx(&ctx);
+
+ if (r)
+ sect_head = head;
+ else
+ conf_clear(head);
+
+ return r;
+}
+
+static char* skip_space(char *str)
+{
+ for (; *str && (*str == ' ' || *str == '\t'); str++);
+ return str;
+}
+
+static char* skip_word(char *str)
+{
+ for (; *str && (*str != ' ' && *str != '\t' && *str != '='); str++);
+ return str;
+}
+
+static struct conf_sect *find_sect(const char *name)
+{
+ struct conf_sect *s;
+
+ for (s = sect_head; s; s = s->next) {
+ if (strcmp(s->name, name) == 0)
+ return s;
+ }
+
+ return NULL;
+}
+
+static struct conf_sect *create_sect(const char *name)
+{
+ struct conf_sect *s = malloc(sizeof(struct conf_sect));
+
+ s->name = strdup(name);
+ s->next = NULL;
+ s->opt = NULL;
+
+ if (!sect_head)
+ sect_head = s;
+ else
+ sect_tail->next = s;
+
+ sect_tail = s;
+
+ return s;
+}
+
+static int sect_add_item(struct conf_ctx *ctx, const char *name, char *val, char *raw)
+{
+ struct conf_opt *opt = malloc(sizeof(struct conf_opt));
+ int r = 0;
+ int chld = 0;
+
+ if (val) {
+ int len = strlen(val);
+ if (val[len - 1] == '{') {
+ chld = 1;
+ val[--len] = 0;
+
+ while (--len >= 0 && (val[len] == ' ' || val[len] == '\t'));
+
+ if (len >= 0)
+ val[len + 1] = 0;
+ else
+ val = NULL;
+ }
+ }
+
+ opt->name = strdup(name);
+ opt->val = val ? strdup(val) : NULL;
+ opt->raw = raw;
+ opt->next = NULL;
+ opt->child = NULL;
+
+ *ctx->list = opt;
+ ctx->list = &opt->next;
+
+ if (chld) {
+ struct conf_opt **list = ctx->list;
+ ctx->list = &opt->child;
+ ctx->options = 1;
+ r = load_file(ctx);
+ ctx->options = 0;
+ ctx->list = list;
+ }
+
+ return r;
+}
+
+static struct conf_opt *find_item(struct conf_sect *sect, const char *name)
+{
+ struct conf_opt *opt;
+
+ for (opt = sect->opt; opt; opt = opt->next) {
+ if (strcmp(opt->name, name) == 0)
+ return opt;
+ }
+
+ return NULL;
+}
+
+struct conf_sect* conf_get_sect(const char *name)
+{
+ return find_sect(name);
+}
+
+const char *conf_get_opt(const char *sect, const char *name)
+{
+ struct conf_opt *opt;
+ struct conf_sect *s = conf_get_sect(sect);
+
+ if (!s)
+ return NULL;
+
+ opt = find_item(s, name);
+ if (!opt)
+ return NULL;
+
+ return opt->val;
+}
+
diff --git a/accel-dpdk/conf_file.h b/accel-dpdk/conf_file.h
new file mode 100644
index 0000000..0221466
--- /dev/null
+++ b/accel-dpdk/conf_file.h
@@ -0,0 +1,23 @@
+#ifndef __CONF_FILE_H
+#define __CONF_FILE_H
+
+struct conf_opt {
+ struct conf_opt *next;
+ char *name;
+ char *val;
+ char *raw;
+ struct conf_opt *child;
+};
+
+struct conf_sect {
+ struct conf_sect *next;
+ char *name;
+ struct conf_opt *opt;
+};
+
+struct conf_sect *conf_get_sect(const char *name);
+const char *conf_get_opt(const char *sect, const char *name);
+
+int conf_load(const char *fname);
+
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2025-02-28 11:32:16 +0000