get/set prices for items

.gitignore

@@ -0,0 +1,3 @@
+a.out
+db
+

database/db.cpp

@@ -70,6 +70,11 @@ void PosDb::acceptLogEntry(const LogEntry & l) {
 		break;
 	}
 
+  case ET_PRICE: {
+    upc_to_price[l.PriceChange.upc] = l.PriceChange.price;
+    break;
+  }
+
 	case ET_REVERT: {
 		sto_it q = serial_to_object.find(l.Revert.revert_serial);
 		if((q == serial_to_object.end()) || (q->second.type != ET_TRANS)) {
@@ -172,7 +177,7 @@ uint64_t PosDb::deassociateHash(const SHA1Hash & hash) {
 	} else {
 		LogEntry l;
 		memset(&l, 0, sizeof(LogEntry));
-                l.ts = (uint64_t)time(NULL);
+    l.ts = (uint64_t)time(NULL);
                 l.type = ET_HASH;
                 l.HashChange.uid = acct;
                 l.HashChange.add = false;
@@ -184,6 +189,26 @@ uint64_t PosDb::deassociateHash(const SHA1Hash & hash) {
 	}
 }
 
+int32_t PosDb::getUPCPrice(UPC upc) {
+  uts_it it = upc_to_price.find(upc);
+  if (it == upc_to_price.end()) {
+    return 0;
+  }
+  return it->second;
+}
+
+uint64_t PosDb::setUPCPrice(UPC upc, int32_t price) {
+  LogEntry l;
+  memset(&l, 0, sizeof(LogEntry));
+  l.ts = (uint64_t)time(NULL);
+  l.type = ET_PRICE;
+  l.PriceChange.upc = upc;
+  l.PriceChange.price = price;
+  l.serial = log.nextSerial();
+  acceptLogEntry(l);
+  return log.writeEntry(l);
+}
+
 uint64_t PosDb::doTransaction(const SHA1Hash & hash, int32_t delta) {
 	// verify hash associated with something
 	uint32_t acct = getAccountFromHash(hash);

database/db.h

@@ -23,6 +23,9 @@ public:
 	uint64_t associateHash(const SHA1Hash & hash, std::string account);
 	uint64_t deassociateHash(const SHA1Hash & hash);
 
+  int32_t getUPCPrice(UPC upc);
+  uint64_t setUPCPrice(UPC upc, int32_t price);
+
 	uint64_t doTransaction(const SHA1Hash & hash, int32_t delta);
 	uint64_t doTransaction(const uint32_t account, int32_t delta);
 	uint64_t doTransaction(std::string account, int32_t delta);
@@ -38,6 +41,7 @@ private:
 	std::map<uint32_t, int32_t> account_to_balance;
 
 	std::map<UPC, int32_t, UPCLess> upc_to_stock;
+  std::map<UPC, int32_t, UPCLess> upc_to_price;
 
 	std::map<uint64_t, LogEntry> serial_to_object;
 

database/log.h

@@ -5,7 +5,7 @@
 #include <string>
 #include <stdint.h>
 
-enum E_OBJ_TYPE { ET_TRANS, ET_HASH, ET_SALE, ET_REVERT };
+enum E_OBJ_TYPE { ET_TRANS, ET_HASH, ET_SALE, ET_PRICE, ET_REVERT };
 
 struct __attribute__ ((packed)) UPC {
 	uint64_t h, l;
@@ -43,6 +43,11 @@ struct __attribute__ ((aligned (64), packed)) LogEntry
 			int32_t delta;
 		} StockChange;
 
+    struct __attribute__ ((packed)) {
+      UPC upc;
+      int32_t price;
+    } PriceChange;
+
 		struct __attribute__ ((packed)) {
 			uint64_t revert_serial;
 		} Revert;

database/nameserver.cpp

@@ -19,7 +19,6 @@ uint32_t NameServer::get_id (std::string name) {
   std::cerr << "Doing LDAP lookup for \"" << name << "\".\n";
   struct passwd* pwd = getpwnam(name.c_str());
   if (!pwd) {
-    std::cerr << "Username " << name << "  lookup fail!\n";
     // TODO: oh fuck???
     return 0;
   }

database/tests.cpp

@@ -25,6 +25,8 @@ int main() {
 	UPC foo;
 	foo.l = 12345;
 	foo.h = 67890;
+  cout << db.setUPCPrice(foo, db.getUPCPrice(foo) + 1) << "\n";
+  cout << "price: " << db.getUPCPrice(foo) << "\n";
 	cout << db.doStockChange(foo, 100) << "\n";
 	cout << db.getStock(foo) << "\n";
 	foo.l = 123;

main.cpp

@@ -75,7 +75,7 @@ void render () {
           );
   static float x = 0;
   glTranslatef (-8,0,-20);
-  glRotatef (x+=1.0, 0,1,0);
+  glRotatef (x+=0.01, 0,1,0);
   glRotatef (30.0, 1.0,0,0);
 
   GLint shader_tex_loc = glGetUniformLocation(shaders[0].prog_id, "texture");
@@ -253,7 +253,7 @@ void GL_init (float w, float h) {
 }
 
 int main () {
-  float scale = 3;
+  float scale = 1;
   float w = 480*scale;
   float h = 272*scale;
   if (!glfwInit () || !glfwOpenWindow (w, h, 8,8,8,0,32,0,GLFW_WINDOW)) {