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more work on database

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This commit is contained in:
Cedric Roux
2016-03-16 11:00:39 +01:00
parent fe808cc3b4
commit 1f4f030581
4 changed files with 137 additions and 30 deletions
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tracer/Makefile
+1 -1
View File
@@ -8,7 +8,7 @@ CFLAGS += -DT_USE_SHARED_MEMORY
LIBS += -lrt
PROG=tracer
OBJS=main.o plot.o t_data.o
OBJS=main.o plot.o database.o
$(PROG): $(OBJS)
$(CC) $(CFLAGS) -o $(PROG) $(OBJS) $(LIBS)
tracer/t_data.c → tracer/database.c
+94 -25
View File
@@ -7,6 +7,8 @@
typedef struct {
char *name;
char *desc;
char **groups;
int size;
} id;
typedef struct {
@@ -16,6 +18,7 @@ typedef struct {
} group;
typedef struct {
char *name;
id *i;
int isize;
group *g;
@@ -92,17 +95,6 @@ void get_line(parser *p, FILE *f, char **name, char **value)
*value = p->value.data;
}
void add_id(database *r, char *id)
{
if ((r->isize & 1023) == 0) {
r->i = realloc(r->i, (r->isize + 1024) * sizeof(id));
if (r->i == NULL) { printf("out of memory\n"); exit(1); }
}
r->i[r->isize].name = strdup(id);
if (r->i[r->isize].name == NULL) { printf("out of memory\n"); exit(1); }
r->isize++;
}
int group_cmp(const void *_p1, const void *_p2)
{
const group *p1 = _p1;
@@ -110,13 +102,44 @@ int group_cmp(const void *_p1, const void *_p2)
return strcmp(p1->name, p2->name);
}
int id_cmp(const void *_p1, const void *_p2)
{
const id *p1 = _p1;
const id *p2 = _p2;
return strcmp(p1->name, p2->name);
}
int string_cmp(const void *_p1, const void *_p2)
{
char * const *p1 = _p1;
char * const *p2 = _p2;
return strcmp(*p1, *p2);
}
id *add_id(database *r, char *idname)
{
if (bsearch(&(id){name:idname}, r->i, r->isize, sizeof(id), id_cmp) != NULL)
{ printf("ERROR: ID '%s' declared more than once\n", idname); exit(1); }
if ((r->isize & 1023) == 0) {
r->i = realloc(r->i, (r->isize + 1024) * sizeof(id));
if (r->i == NULL) { printf("out of memory\n"); exit(1); }
}
r->i[r->isize].name = strdup(idname);
if (r->i[r->isize].name == NULL) { printf("out of memory\n"); exit(1); }
r->i[r->isize].desc = NULL;
r->i[r->isize].groups = NULL;
r->i[r->isize].size = 0;
r->isize++;
qsort(r->i, r->isize, sizeof(id), id_cmp);
return (id*)bsearch(&(id){name:idname}, r->i, r->isize, sizeof(id), id_cmp);
}
group *get_group(database *r, char *group_name)
{
group gsearch;
group *ret;
gsearch.name = group_name;
ret = bsearch(&gsearch, r->g, r->gsize, sizeof(group), group_cmp);
ret = bsearch(&(group){name:group_name},
r->g, r->gsize, sizeof(group), group_cmp);
if (ret != NULL) return ret;
if ((r->gsize & 1023) == 0) {
@@ -131,7 +154,8 @@ group *get_group(database *r, char *group_name)
qsort(r->g, r->gsize, sizeof(group), group_cmp);
return bsearch(&gsearch, r->g, r->gsize, sizeof(group), group_cmp);
return bsearch(&(group){name:group_name},
r->g, r->gsize, sizeof(group), group_cmp);
}
void group_add_id(group *g, char *id)
@@ -144,10 +168,24 @@ void group_add_id(group *g, char *id)
g->size++;
}
void add_groups(database *r, char *groups)
void id_add_group(id *i, char *group)
{
char *g = bsearch(&group, i->groups, i->size, sizeof(char *), string_cmp);
if (g != NULL) return;
if ((i->size & 1023) == 0) {
i->groups = realloc(i->groups, (i->size+1024) * sizeof(char *));
if (i->groups == NULL) abort();
}
i->groups[i->size] = group;
i->size++;
qsort(i->groups, i->size, sizeof(char *), string_cmp);
}
void add_groups(database *r, id *i, char *groups)
{
group *g;
if (i == NULL) {printf("ERROR: GROUP line before ID line\n");exit(1);}
while (1) {
char *start = groups;
char *end = start;
@@ -159,7 +197,8 @@ void add_groups(database *r, char *groups)
if (*end == 0) end = NULL; else *end = 0;
g = get_group(r, start);
group_add_id(g, r->i[r->isize-1].name);
group_add_id(g, i->name);
id_add_group(i, g->name);
if (end == NULL) break;
end++;
@@ -169,24 +208,34 @@ void add_groups(database *r, char *groups)
}
}
void add_desc(id *i, char *desc)
{
if (i == NULL) {printf("ERROR: DESC line before ID line\n");exit(1);}
i->desc = strdup(desc); if (i->desc == NULL) abort();
}
void *parse_database(char *filename)
{
FILE *in;
parser p;
database *r;
char *name, *value;
id *last_id = NULL;
r = calloc(1, sizeof(*r)); if (r == NULL) abort();
memset(&p, 0, sizeof(p));
r->name = strdup(filename); if (r->name == NULL) abort();
in = fopen(filename, "r"); if (in == NULL) { perror(filename); abort(); }
while (1) {
get_line(&p, in, &name, &value);
if (name == NULL) break;
printf("%s %s\n", name, value);
if (!strcmp(name, "ID")) add_id(r, value);
if (!strcmp(name, "GROUP")) add_groups(r, value);
//printf("%s %s\n", name, value);
if (!strcmp(name, "ID")) last_id = add_id(r, value);
if (!strcmp(name, "GROUP")) add_groups(r, last_id, value);
if (!strcmp(name, "DESC")) add_desc(last_id, value);
}
fclose(in);
@@ -201,13 +250,33 @@ void dump_database(void *_d)
database *d = _d;
int i;
printf("database: %d IDs, %d GROUPs\n", d->isize, d->gsize);
for (i = 0; i < d->isize; i++)
printf("ID %s [%s]\n", d->i[i].name, d->i[i].desc);
printf("database %s: %d IDs, %d GROUPs\n", d->name, d->isize, d->gsize);
for (i = 0; i < d->isize; i++) {
int j;
printf("ID %s [%s] [in %d group%s]\n",
d->i[i].name, d->i[i].desc ? d->i[i].desc : "",
d->i[i].size, d->i[i].size > 1 ? "s" : "");
for (j = 0; j < d->i[i].size; j++)
printf(" in GROUP: %s\n", d->i[i].groups[j]);
}
for (i = 0; i < d->gsize; i++) {
int j;
printf("GROUP %s [size %d]\n", d->g[i].name, d->g[i].size);
for (j = 0; j < d->g[i].size; j++)
printf(" ID %s\n", d->g[i].ids[j]);
printf(" contains ID: %s\n", d->g[i].ids[j]);
}
}
void list_ids(void *_d)
{
database *d = _d;
int i;
for (i = 0; i < d->isize; i++) printf("%s\n", d->i[i].name);
}
void list_groups(void *_d)
{
database *d = _d;
int i;
for (i = 0; i < d->gsize; i++) printf("%s\n", d->g[i].name);
}
tracer/defs.h
+2
View File
@@ -8,5 +8,7 @@ void iq_plot_set(void *plot, short *data, int len, int pos);
/* returns an opaque pointer - truly a 'database *', see t_data.c */
void *parse_database(char *filename);
void dump_database(void *database);
void list_ids(void *database);
void list_groups(void *database);
#endif /* _TRACER_DEFS_H_ */
tracer/main.c
+40 -4
View File
@@ -257,15 +257,53 @@ void init_shm(void)
#endif /* T_USE_SHARED_MEMORY */
void usage(void)
{
printf(
"options:\n"
" -d <database file> this option is mandatory\n"
" -li print IDs in the database\n"
" -lg print GROUPs in the database\n"
" -dump dump the database\n"
);
exit(1);
}
int main(int n, char **v)
{
char *database_filename = NULL;
void *database;
int s;
int l;
char t;
int i;
int do_list_ids = 0;
int do_list_groups = 0;
int do_dump_database = 0;
database = parse_database("../T_messages.txt");
dump_database(database);
for (i = 1; i < n; i++) {
if (!strcmp(v[i], "-h") || !strcmp(v[i], "--help")) usage();
if (!strcmp(v[i], "-d"))
{ if (i > n-2) usage(); database_filename = v[++i]; continue; }
if (!strcmp(v[i], "-li")) { do_list_ids = 1; continue; }
if (!strcmp(v[i], "-lg")) { do_list_groups = 1; continue; }
if (!strcmp(v[i], "-dump")) { do_dump_database = 1; continue; }
usage();
}
if (database_filename == NULL) {
printf("ERROR: provide a database file (-d)\n");
exit(1);
}
database = parse_database(database_filename);
if (do_list_ids + do_list_groups + do_dump_database > 1) usage();
if (do_list_ids) { list_ids(database); return 0; }
if (do_list_groups) { list_groups(database); return 0; }
if (do_dump_database) { dump_database(database); return 0; }
ul_plot = make_plot(512, 100, 7680*2*10);
#ifdef T_USE_SHARED_MEMORY
init_shm();
@@ -279,8 +317,6 @@ int main(int n, char **v)
for (l = 0; l < T_NUMBER_OF_IDS; l++)
if (write(s, &l, sizeof(int)) != sizeof(int)) abort();
ul_plot = make_plot(512, 100, 7680*2*10);
/* read messages */
while (1) {
#ifdef T_USE_SHARED_MEMORY