add generic isl_obj

[platform/upstream/isl.git] / isl_ctx.c

diff --git a/isl_ctx.c b/isl_ctx.c
index fb491a0..ea9831f 100644 (file)
--- a/isl_ctx.c
+++ b/isl_ctx.c
@@ -1,23 +1,45 @@
+/*
+ * Copyright 2008-2009 Katholieke Universiteit Leuven
+ *
+ * Use of this software is governed by the GNU LGPLv2.1 license
+ *
+ * Written by Sven Verdoolaege, K.U.Leuven, Departement
+ * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
+ */
+
 #include "isl_ctx.h"
 #include "isl_vec.h"
-#ifdef ISL_POLYLIB
-#include <polylib/polylibgmp.h>
-#endif
 
-struct isl_ctx *isl_ctx_alloc()
+isl_ctx *isl_ctx_alloc_with_options(struct isl_options *opt)
 {
        struct isl_ctx *ctx = NULL;
 
-       ctx = isl_alloc_type(NULL, struct isl_ctx);
+       if (!opt)
+               return NULL;
+
+       ctx = isl_calloc_type(NULL, struct isl_ctx);
        if (!ctx)
                goto error;
 
+       if (isl_hash_table_init(ctx, &ctx->name_hash, 0))
+               goto error;
+
+       ctx->stats = isl_calloc_type(ctx, struct isl_stats);
+       if (!ctx->stats)
+               goto error;
+
+       ctx->opt = opt;
+       ctx->ref = 0;
+
        isl_int_init(ctx->one);
        isl_int_set_si(ctx->one, 1);
 
-#ifdef ISL_POLYLIB
-       ctx->MaxRays = POL_NO_DUAL | POL_INTEGER;
-#endif
+       isl_int_init(ctx->negone);
+       isl_int_set_si(ctx->negone, -1);
+
+       isl_int_init(ctx->normalize_gcd);
+
+       ctx->n_cached = 0;
 
        return ctx;
 error:
@@ -25,10 +47,44 @@ error:
        return NULL;
 }
 
+struct isl_ctx *isl_ctx_alloc()
+{
+       struct isl_options *opt;
+
+       opt = isl_options_new_with_defaults();
+
+       return isl_ctx_alloc_with_options(opt);
+}
+
+void isl_ctx_ref(struct isl_ctx *ctx)
+{
+       ctx->ref++;
+}
+
+void isl_ctx_deref(struct isl_ctx *ctx)
+{
+       isl_assert(ctx, ctx->ref > 0, return);
+       ctx->ref--;
+}
+
 void isl_ctx_free(struct isl_ctx *ctx)
 {
        if (!ctx)
                return;
+       isl_assert(ctx, ctx->ref == 0, return);
+       isl_hash_table_clear(&ctx->name_hash);
+       isl_blk_clear_cache(ctx);
        isl_int_clear(ctx->one);
+       isl_int_clear(ctx->negone);
+       isl_int_clear(ctx->normalize_gcd);
+       free(ctx->opt);
+       free(ctx->stats);
        free(ctx);
 }
+
+struct isl_options *isl_ctx_options(isl_ctx *ctx)
+{
+       if (!ctx)
+               return NULL;
+       return ctx->opt;
+}