Alexander's patch #1:
This patch makes a step towards using a system-wide sqlite3 lib. It
moves sqlite3util.cpp/.h to CommonLibs and leaves only original
sqlite3 files in the sqlite3 dir of OpenBTS.
I do not claim any copyright over this change, as it's very basic.
Looking forward to see it merged into mainline.
git-svn-id: http://wush.net/svn/range/software/public/openbts/trunk@4467 19bc5d8c-e614-43d4-8b26-e1612bc8e597
diff --git a/CommonLibs/sqlite3util.cpp b/CommonLibs/sqlite3util.cpp
new file mode 100644
index 0000000..b898445
--- /dev/null
+++ b/CommonLibs/sqlite3util.cpp
@@ -0,0 +1,147 @@
+/*
+* Written by David A. Burgess, Kestrel Signal Processing, Inc., 2010
+* The author disclaims copyright to this source code.
+*/
+
+
+#include "sqlite3.h"
+#include "sqlite3util.h"
+
+#include <string.h>
+#include <unistd.h>
+#include <stdio.h>
+
+
+// Wrappers to sqlite operations.
+// These will eventually get moved to commonlibs.
+
+int sqlite3_prepare_statement(sqlite3* DB, sqlite3_stmt **stmt, const char* query)
+{
+ int prc = sqlite3_prepare_v2(DB,query,strlen(query),stmt,NULL);
+ if (prc) {
+ fprintf(stderr,"sqlite3_prepare_v2 failed for \"%s\": %s\n",query,sqlite3_errmsg(DB));
+ sqlite3_finalize(*stmt);
+ }
+ return prc;
+}
+
+int sqlite3_run_query(sqlite3* DB, sqlite3_stmt *stmt)
+{
+ int src = SQLITE_BUSY;
+ while (src==SQLITE_BUSY) {
+ src = sqlite3_step(stmt);
+ if (src==SQLITE_BUSY) {
+ usleep(100000);
+ }
+ }
+ if ((src!=SQLITE_DONE) && (src!=SQLITE_ROW)) {
+ fprintf(stderr,"sqlite3_run_query failed: %s: %s\n", sqlite3_sql(stmt), sqlite3_errmsg(DB));
+ }
+ return src;
+}
+
+
+bool sqlite3_exists(sqlite3* DB, const char *tableName,
+ const char* keyName, const char* keyData)
+{
+ size_t stringSize = 100 + strlen(tableName) + strlen(keyName) + strlen(keyData);
+ char query[stringSize];
+ sprintf(query,"SELECT * FROM %s WHERE %s == \"%s\"",tableName,keyName,keyData);
+ // Prepare the statement.
+ sqlite3_stmt *stmt;
+ if (sqlite3_prepare_statement(DB,&stmt,query)) return false;
+ // Read the result.
+ int src = sqlite3_run_query(DB,stmt);
+ sqlite3_finalize(stmt);
+ // Anything there?
+ return (src == SQLITE_ROW);
+}
+
+
+
+bool sqlite3_single_lookup(sqlite3* DB, const char *tableName,
+ const char* keyName, const char* keyData,
+ const char* valueName, unsigned &valueData)
+{
+ size_t stringSize = 100 + strlen(valueName) + strlen(tableName) + strlen(keyName) + strlen(keyData);
+ char query[stringSize];
+ sprintf(query,"SELECT %s FROM %s WHERE %s == \"%s\"",valueName,tableName,keyName,keyData);
+ // Prepare the statement.
+ sqlite3_stmt *stmt;
+ if (sqlite3_prepare_statement(DB,&stmt,query)) return false;
+ // Read the result.
+ int src = sqlite3_run_query(DB,stmt);
+ bool retVal = false;
+ if (src == SQLITE_ROW) {
+ valueData = (unsigned)sqlite3_column_int64(stmt,0);
+ retVal = true;
+ }
+ sqlite3_finalize(stmt);
+ return retVal;
+}
+
+
+// This function returns an allocated string that must be free'd by the caller.
+bool sqlite3_single_lookup(sqlite3* DB, const char* tableName,
+ const char* keyName, const char* keyData,
+ const char* valueName, char* &valueData)
+{
+ valueData=NULL;
+ size_t stringSize = 100 + strlen(valueName) + strlen(tableName) + strlen(keyName) + strlen(keyData);
+ char query[stringSize];
+ sprintf(query,"SELECT %s FROM %s WHERE %s == \"%s\"",valueName,tableName,keyName,keyData);
+ // Prepare the statement.
+ sqlite3_stmt *stmt;
+ if (sqlite3_prepare_statement(DB,&stmt,query)) return false;
+ // Read the result.
+ int src = sqlite3_run_query(DB,stmt);
+ bool retVal = false;
+ if (src == SQLITE_ROW) {
+ const char* ptr = (const char*)sqlite3_column_text(stmt,0);
+ if (ptr) valueData = strdup(ptr);
+ retVal = true;
+ }
+ sqlite3_finalize(stmt);
+ return retVal;
+}
+
+
+// This function returns an allocated string that must be free'd by tha caller.
+bool sqlite3_single_lookup(sqlite3* DB, const char* tableName,
+ const char* keyName, unsigned keyData,
+ const char* valueName, char* &valueData)
+{
+ valueData=NULL;
+ size_t stringSize = 100 + strlen(valueName) + strlen(tableName) + strlen(keyName) + 20;
+ char query[stringSize];
+ sprintf(query,"SELECT %s FROM %s WHERE %s == %u",valueName,tableName,keyName,keyData);
+ // Prepare the statement.
+ sqlite3_stmt *stmt;
+ if (sqlite3_prepare_statement(DB,&stmt,query)) return false;
+ // Read the result.
+ int src = sqlite3_run_query(DB,stmt);
+ bool retVal = false;
+ if (src == SQLITE_ROW) {
+ const char* ptr = (const char*)sqlite3_column_text(stmt,0);
+ if (ptr) valueData = strdup(ptr);
+ retVal = true;
+ }
+ sqlite3_finalize(stmt);
+ return retVal;
+}
+
+
+
+
+bool sqlite3_command(sqlite3* DB, const char* query)
+{
+ // Prepare the statement.
+ sqlite3_stmt *stmt;
+ if (sqlite3_prepare_statement(DB,&stmt,query)) return false;
+ // Run the query.
+ int src = sqlite3_run_query(DB,stmt);
+ return src==SQLITE_DONE;
+}
+
+
+