X-Git-Url: https://git.llucax.com/z.facultad/75.06/emufs.git/blobdiff_plain/c407055e1cc6ff4c435114091c3a5430486aa659..b1be8a89626ce30127758ad5e01a5c6069516fae:/emufs/idx.c

diff --git a/emufs/idx.c b/emufs/idx.c
index c05c34c..6ee1b87 100644
--- a/emufs/idx.c
+++ b/emufs/idx.c
@@ -68,26 +68,31 @@ int emufs_idx_crear(EMUFS *efs)
 /* Devuelve el mayor id de registro utilizado so far en el archivo de datos, revisando el indice. */
 EMUFS_REG_ID emufs_idx_buscar_mayor_id(EMUFS *emu)
 {
-	EMUFS_REG_ID n_IdReg, max = -1;
+	EMUFS_REG_ID n_idreg, max = 0;
 	FILE *f_idx;	
 	EMUFS_IDX reg;
 	char name_f_idx[255]; /* TODO usar malloc para no limitar el tamaño de nombre de archivo */
+	unsigned short int b_found = 0;
 
 	strcpy(name_f_idx,emu->nombre);
 	strcat(name_f_idx, EMUFS_IDX_EXT);
 
 	if ( (f_idx = fopen(name_f_idx,"r")) == NULL) return -1; /*ERROR*/
-	n_IdReg = -1;
+	n_idreg = -1;
 	while ( !feof(f_idx) ){
 		/* Me aseguro de leer la cantidad de bytes correcta */
 		if (fread(&reg,sizeof(EMUFS_IDX),1,f_idx) != 1) continue;
-		if ( reg.n_IdReg >= max ) 
-			max = reg.n_IdReg;
+		if ( reg.n_idreg >= max ) {
+			max = reg.n_idreg;
+			b_found = 1;
+		}
 	}
-	n_IdReg = max+1;
 	fclose(f_idx);
-
-	return n_IdReg;	
+	
+	if (!b_found)
+		return (0);
+	else
+		return(max+1);
 }
 
 /* busca el registro ID en el archivo ".idx" y devuelve el nro de bloque en el que se encuentra */
@@ -105,18 +110,20 @@ EMUFS_BLOCK_ID emufs_idx_buscar_registro(EMUFS *emu, EMUFS_REG_ID n_IdReg)
 
 	while (!feof(f_idx) && !b_Found){
 		if (fread(&reg,sizeof(EMUFS_IDX),1,f_idx) != 1) continue;
-		if (reg.n_IdReg == n_IdReg) b_Found = 1;
+		if (reg.n_idreg == n_IdReg) b_Found = 1;
 	}
 	
 	fclose(f_idx);
 	
 	/* Sino lo encontre devuelvo uno, otherwise el offset o bloque */
-	if (!b_Found) return(-1);
-	else return(reg.n_Location);
+	if (!b_Found)
+		return(-1);
+	else
+		return(reg.n_location);
 }
 
 /* agrega un registro al final del archivo */
-int emufs_idx_agregar(EMUFS *emu, EMUFS_BLOCK_ID n_Location, EMUFS_REG_ID n_IdReg)
+int emufs_idx_agregar(EMUFS *emu, EMUFS_REG_ID n_idreg, EMUFS_BLOCK_ID n_location)
 {
 	FILE *f_idx;
 	EMUFS_IDX reg;
@@ -128,8 +135,8 @@ int emufs_idx_agregar(EMUFS *emu, EMUFS_BLOCK_ID n_Location, EMUFS_REG_ID n_IdRe
 	if ( (f_idx = fopen(name_f_idx,"a+"))==NULL ) return -1;
 		
     /* Note: Location = Bloque para Tipo 1 y 3, Offset para Tipo 2 */
-	reg.n_Location = n_Location;
-	reg.n_IdReg = n_IdReg;
+    reg.n_idreg = n_idreg;
+		reg.n_location = n_location;
 	fwrite(&reg,sizeof(EMUFS_IDX),1,f_idx); 
 	fclose(f_idx);
 	return 0;
@@ -151,7 +158,7 @@ int emufs_idx_borrar(EMUFS *emu, EMUFS_REG_ID n_IdReg)
 	while ( !feof(f_idx) ){
 		/*busco cual tengo que borrar*/
 		if ( fread(&reg, sizeof(EMUFS_IDX), 1, f_idx) != 1 ) continue;
-		if ( reg.n_IdReg == n_IdReg )
+		if ( reg.n_idreg == n_IdReg )
 			break;
 	}