server/src/util/crmessage.c

156 lines
3.7 KiB
C

/* vi: set ts=2:
+-------------------+ Christian Schlittchen <corwin@amber.kn-bremen.de>
| | Enno Rehling <enno@eressea.de>
| Eressea PBEM host | Katja Zedel <katze@felidae.kn-bremen.de>
| (c) 1998 - 2003 | Henning Peters <faroul@beyond.kn-bremen.de>
| | Ingo Wilken <Ingo.Wilken@informatik.uni-oldenburg.de>
+-------------------+ Stefan Reich <reich@halbling.de>
This program may not be used, modified or distributed
without prior permission by the authors of Eressea.
*/
#include <platform.h>
#include "crmessage.h"
#include "message.h"
#include "goodies.h"
#include "log.h"
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
/** type to string conversion **/
typedef struct tsf_list {
struct tsf_list *next;
const char *name;
tostring_f fun;
} tsf_list;
static tsf_list *tostringfs;
static tostring_f tsf_find(const char *name)
{
if (name != NULL) {
tsf_list *tsf;
for (tsf = tostringfs; tsf; tsf = tsf->next) {
if (!strcmp(tsf->name, name))
return tsf->fun;
}
}
return NULL;
}
void tsf_register(const char *name, tostring_f fun)
{
tsf_list *tsf;
for (tsf = tostringfs; tsf; tsf = tsf->next) {
if (!strcmp(tsf->name, name))
break;
}
if (tsf == NULL) {
tsf = malloc(sizeof(tsf_list));
tsf->fun = fun;
tsf->name = name;
tsf->next = tostringfs;
tostringfs = tsf;
}
}
/** crmesssage **/
typedef struct crmessage_type {
const struct message_type *mtype;
tostring_f *renderers;
struct crmessage_type *next;
} crmessage_type;
#define CRMAXHASH 63
static crmessage_type *crtypes[CRMAXHASH];
static crmessage_type *crt_find(const struct message_type *mtype)
{
unsigned int hash = hashstring(mtype->name) % CRMAXHASH;
crmessage_type *found = NULL;
crmessage_type *type = crtypes[hash];
while (type) {
if (type->mtype == mtype)
found = type;
type = type->next;
}
return found;
}
void crt_register(const struct message_type *mtype)
{
unsigned int hash = hashstring(mtype->name) % CRMAXHASH;
crmessage_type *crt = crtypes[hash];
while (crt && crt->mtype != mtype) {
crt = crt->next;
}
if (!crt) {
int i;
crt = malloc(sizeof(crmessage_type));
crt->mtype = mtype;
crt->next = crtypes[hash];
crtypes[hash] = crt;
if (mtype->nparameters > 0) {
crt->renderers = malloc(sizeof(tostring_f) * mtype->nparameters);
} else {
crt->renderers = NULL;
}
/* can be scrapped for memory vs. speed */
for (i = 0; i != mtype->nparameters; ++i) {
crt->renderers[i] = tsf_find(mtype->types[i]->name);
}
}
}
int cr_render(const message * msg, char *buffer, const void *userdata)
{
int i;
char *c = buffer;
struct crmessage_type *crt = crt_find(msg->type);
if (crt == NULL)
return -1;
for (i = 0; i != msg->type->nparameters; ++i) {
if (crt->renderers[i] == NULL) {
log_error("No renderer for argument %s:%s of \"%s\"\n", msg->type->pnames[i], msg->type->types[i]->name, msg->type->name);
continue; /* strcpy(c, (const char*)msg->locale_string(u->faction->locale, parameters[i])); */
} else {
if (crt->renderers[i] (msg->parameters[i], c, userdata) != 0)
continue;
}
c += strlen(c);
sprintf(c, ";%s\n", msg->type->pnames[i]);
c += strlen(c);
}
return 0;
}
int cr_string(variant var, char *buffer, const void *userdata)
{
sprintf(buffer, "\"%s\"", (const char *)var.v);
unused(userdata);
return 0;
}
int cr_int(variant var, char *buffer, const void *userdata)
{
sprintf(buffer, "%d", var.i);
unused(userdata);
return 0;
}
int cr_ignore(variant var, char *buffer, const void *userdata)
{
unused(var);
unused(buffer);
unused(userdata);
return -1;
}