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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include "pci.h"
#include "pcilib.h"
#include "unit.h"
#include "error.h"
static pcilib_unit_transform_t pcilib_unit_transform_null = { NULL, NULL };
int pcilib_add_units(pcilib_t *ctx, size_t n, const pcilib_unit_description_t *desc) {
size_t i;
int err = 0;
if (!n) {
for (n = 0; desc[n].name; n++);
}
if ((ctx->num_units + n + 1) > ctx->alloc_units) {
size_t size;
pcilib_unit_description_t *units;
for (size = ctx->alloc_units; size < 2 * (n + ctx->num_units + 1); size <<= 1);
units = (pcilib_unit_description_t*)realloc(ctx->units, size * sizeof(pcilib_unit_description_t));
if (!units) return PCILIB_ERROR_MEMORY;
ctx->units = units;
ctx->alloc_units = size;
ctx->model_info.units = units;
}
// ToDo: Check if exists...
for (i = 0; i < n; i++) {
pcilib_unit_t unit = pcilib_find_unit_by_name(ctx, desc[i].name);
if (unit != PCILIB_UNIT_INVALID) {
pcilib_clean_units(ctx, ctx->num_units);
pcilib_error("Unit %s is already defined in the model", desc[i].name);
return PCILIB_ERROR_EXIST;
}
pcilib_unit_context_t *unit_ctx = (pcilib_unit_context_t*)malloc(sizeof(pcilib_unit_context_t));
if (!unit_ctx) {
pcilib_clean_units(ctx, ctx->num_units);
return PCILIB_ERROR_MEMORY;
}
memset(unit_ctx, 0, sizeof(pcilib_unit_context_t));
unit_ctx->unit = ctx->num_units + i;
unit_ctx->name = desc[i].name;
HASH_ADD_KEYPTR(hh, ctx->unit_hash, unit_ctx->name, strlen(unit_ctx->name), unit_ctx);
memcpy(ctx->units + ctx->num_units + i, &desc[i], sizeof(pcilib_unit_description_t));
}
ctx->num_units += n;
memset(ctx->units + ctx->num_units, 0, sizeof(pcilib_unit_description_t));
return err;
}
void pcilib_clean_units(pcilib_t *ctx, pcilib_unit_t start) {
pcilib_unit_context_t *s, *tmp;
if (ctx->unit_hash) {
HASH_ITER(hh, ctx->unit_hash, s, tmp) {
if (s->unit >= start) {
HASH_DEL(ctx->unit_hash, s);
free(s);
}
}
}
memset(&ctx->units[start], 0, sizeof(pcilib_unit_description_t));
ctx->num_units = start;
}
pcilib_unit_t pcilib_find_unit_by_name(pcilib_t *ctx, const char *name) {
pcilib_unit_context_t *unit_ctx = NULL;
HASH_FIND_STR(ctx->unit_hash, name, unit_ctx);
if (unit_ctx) return unit_ctx->unit;
/*
pcilib_unit_t i;
for(i = 0; ctx->units[i].name; i++) {
if (!strcasecmp(ctx->units[i].name, name))
return i;
}
*/
return PCILIB_UNIT_INVALID;
}
pcilib_unit_transform_t *pcilib_find_transform_by_unit_names(pcilib_t *ctx, const char *from, const char *to) {
int i;
pcilib_unit_t unit;
if ((!from)||(!to))
return NULL;
if (!strcasecmp(from, to))
return &pcilib_unit_transform_null;
unit = pcilib_find_unit_by_name(ctx, from);
if (unit == PCILIB_UNIT_INVALID) return NULL;
for (i = 0; ctx->units[unit].transforms[i].unit; i++) {
if (!strcasecmp(ctx->units[unit].transforms[i].unit, to))
return &ctx->units[unit].transforms[i];
}
return NULL;
}
int pcilib_transform_unit(pcilib_t *ctx, const pcilib_unit_transform_t *trans, pcilib_value_t *value) {
int err;
if (trans->transform) {
err = pcilib_py_eval_string(ctx, trans->transform, value);
if (err) return err;
value->unit = trans->unit;
} else if (trans->unit) {
value->unit = trans->unit;
}
return 0;
}
int pcilib_transform_unit_by_name(pcilib_t *ctx, const char *to, pcilib_value_t *value) {
pcilib_unit_transform_t *trans;
if (!value->unit) {
pcilib_warning("Can't transform unit of the value with unspecified unit");
return PCILIB_ERROR_INVALID_ARGUMENT;
}
trans = pcilib_find_transform_by_unit_names(ctx, value->unit, to);
if (!trans) {
pcilib_warning("Can't transform unit (%s) to (%s)", value->unit, to);
return PCILIB_ERROR_NOTSUPPORTED;
}
return pcilib_transform_unit(ctx, trans, value);
}
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