Initial import of WIP records abstraction lib i began to make rtl_power mysql/sqlite/... compliant

2020-07-25 14:05:03 +02:00
commit b5a105ea60
4 changed files with 317 additions and 0 deletions
--- a/src/smart_records.c
+++ b/src/smart_records.c
@@ -0,0 +1,108 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "smart_records.h"
+#include "smart_records_internals.h"
+
+#ifdef _HAS_MYSQL
+#include "mysql_backend.h"
+#endif
+
+#ifdef _HAS_SQLITE
+#include "sqlite_backend.h"
+#endif
+
+#ifdef _HAS_UDP
+#include "udp_backend.h"
+#endif
+
+#ifdef _HAS_CSV
+#include "csv_backend.h"
+#endif
+
+
+// nothing but give a context for the moment
+smart_records_ctx_t *smart_records_init(){
+    return malloc(sizeof(smart_records_ctx_t));    
+}
+    
+int smart_records_open_base(smart_records_ctx_t *ctx, char *uri, char **error)
+{
+    int len_uri;
+
+    if(!uri) {
+        set_error_and_fails("URI is null");
+    }
+        
+    len_uri = strlen(uri);
+    if(!strncmp("mysql://", uri, len_uri < 8 ? len_uri : 8)) {
+#ifdef _HAS_MYSQL
+        ctx->CTX = malloc(sizeof(mysql_backend_ctx_t));
+        ctx->write_record = mysql_backend_write_record;
+        ctx->set_format = mysql_backend_set_format;
+        ctx->close_records_base = mysql_backend_close_records_base;
+        if ( mysql_backend_init(ctx->CTX, error) < 0)
+            goto failed;
+#else
+        set_error_and_fails("built without support for mysql:// URIs");
+        goto failed;
+#endif
+    }
+
+    else if(!strncmp("sqlite://", uri, len_uri < 9 ? len_uri : 9)) {
+#ifdef _HAS_SQLITE
+        ctx->CTX = malloc(sizeof(sqlite_backend_ctx_t));
+        ctx->write_record = sqlite_backend_write_record(char *uri);
+        ctx->close_records_base = sqlite_backend_close_records_base(char *uri);
+        if ( sqlite_backend_init(ctx->CTX, error) < 0)
+            goto failed;
+#else
+        if(error) *error = strdup("built without support for sqlite:// URIs");
+        goto failed;
+    }
+#endif
+
+    else if(!strncmp("udp://", uri, len_uri < 8 ? len_uri : 8)) {
+#ifdef _HAS_UDP
+        ctx->CTX = malloc(sizeof(udp_backend_ctx_t));
+        ctx->write_record = udp_backend_write_record(char *uri);
+        ctx->close_records_base = udp_backend_close_records_base(char *uri);
+        if ( udp_backend_init(ctx->CTX, error) < 0)
+            goto failed;
+#else
+        if(error) *error = strdup("built without support for udp:// URIs");
+        goto failed;
+    }
+#endif
+
+    else if(!strncmp("csv://", uri, len_uri < 8 ? len_uri : 8)) {
+#ifdef _HAS_CSV
+        ctx->CTX = malloc(sizeof(csv_backend_ctx_t));
+        ctx->write_record = csv_backend_write_record(char *uri);
+        ctx->close_records_base = csv_backend_close_records_base(char *uri);
+        if ( csv_backend_init(ctx->CTX, error) < 0)
+            goto failed;
+#else
+        if(error) *error = strdup("built without suppor fort csv:// URIs");
+        goto failed;
+#endif
+    }
+    else {
+        if(error) *error = strdup("Unknown scheme or bad URI.");
+        goto failed;
+    }
+    return 0;
+failed:
+    return -1;
+}
+
+int smart_records_close_base(smart_records_ctx_t *ctx)
+{
+    return ctx->close_records_base(ctx);
+}   
+
+int smart_records_write(smart_records_ctx_t *ctx, char **error, va_list ap)
+{
+    return ctx->write_record(ctx, error, ap);
+}