Introduce hashes

1 files changed, 65 insertions, 31 deletions

diff --git a/pcilib/unit.c b/pcilib/unit.c
index 6817afc..0295120 100644
--- a/pcilib/unit.c
+++ b/pcilib/unit.c
@@ -8,16 +8,79 @@
 #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_context_t *unit_ctx = (pcilib_unit_context_t*)malloc(sizeof(pcilib_unit_context_t));
+        if (!unit_ctx) {
+            err = PCILIB_ERROR_MEMORY;
+            break;
+        }
+        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));
+    }
+
+    memset(ctx->units + ctx->num_units + i, 0, sizeof(pcilib_unit_description_t));
+    ctx->num_units += i;
+
+    return err;
+}
+
+void pcilib_clean_units(pcilib_t *ctx) {
+    pcilib_unit_context_t *s, *tmp;
+
+    if (ctx->unit_hash) {
+        HASH_ITER(hh, ctx->unit_hash, s, tmp) {
+            HASH_DEL(ctx->unit_hash, s);
+            free(s);
+        }
+    }
+
+    memset(ctx->units, 0, sizeof(pcilib_unit_description_t));
+    ctx->num_units = 0;
+}
+
 pcilib_unit_t pcilib_find_unit_by_name(pcilib_t *ctx, const char *name) {
-    pcilib_unit_t i;
+    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;
 }
 
@@ -42,35 +105,6 @@ pcilib_unit_transform_t *pcilib_find_transform_by_unit_names(pcilib_t *ctx, cons
     return NULL;
 }
 
-int pcilib_add_units(pcilib_t *ctx, size_t n, const pcilib_unit_description_t *desc) {
-    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;
-    }
-
-    memcpy(ctx->units + ctx->num_units, desc, n * sizeof(pcilib_unit_description_t));
-    memset(ctx->units + ctx->num_units + n, 0, sizeof(pcilib_unit_description_t));
-
-    ctx->num_units += n;
-
-    return 0;
-}
-
-
 int pcilib_transform_unit(pcilib_t *ctx, pcilib_unit_transform_t *trans, pcilib_value_t *value) {
     int err;