From 7932b1f7bfc70a8e2d33416e2797b1e74144c21d Mon Sep 17 00:00:00 2001
From: =?utf8?q?Nicol=C3=A1s=20Dimov?= <ndimov@gmail.com>
Date: Wed, 7 Apr 2004 04:30:13 +0000
Subject: [PATCH 1/1] no me sale lo de acomodar el archivo de bloques/ids

---
 tipo3/main.c      |  2 --
 tipo3/param_cte.c | 32 ++++++++++++++++++++++++++++----
 2 files changed, 28 insertions(+), 6 deletions(-)

diff --git a/tipo3/main.c b/tipo3/main.c
index e74634e..4758f73 100644
--- a/tipo3/main.c
+++ b/tipo3/main.c
@@ -53,8 +53,6 @@ int main(int argc, char *argv[])
 	printf("ID6 = %d\n", n7);
 
 
-	fp->borrar_registro(fp, n1, 100);
-	fp->borrar_registro(fp, n3, 100);
 	fp->borrar_registro(fp, n4, 100);
 	fp->leer_registro(fp, n7, b, 100);
 
diff --git a/tipo3/param_cte.c b/tipo3/param_cte.c
index 9ba368d..ab02873 100644
--- a/tipo3/param_cte.c
+++ b/tipo3/param_cte.c
@@ -323,11 +323,12 @@ int get_id(EMUFS *emu)
 /*borra un registro de un bloque y acomoda los registros que quedan*/
 int borrar_registro(EMUFS *emu, int ID, int tam_reg)
 {
-	int num_bloque, ptr_elim, ptr_mov, ID_aux;
+	int num_bloque, ptr_elim, ptr_mov, ID_aux, cant, i;
 	char *bloque;
 	FILE *f_reg_exist, *f_block_reg, *f_block_free;
 	BLOCK_REG_T reg_b;
 	BLOCK_FREE_T reg_f;
+	BLOCK_REG_T buffer[10];
 	char name_f_reg_exist[255];
 	char name_f_block_reg[255];
 	char name_f_block_free[255];
@@ -390,11 +391,34 @@ int borrar_registro(EMUFS *emu, int ID, int tam_reg)
 	fwrite(&ID, sizeof(int), 1, f_reg_exist);
 	fclose(f_reg_exist);
 	
-	
+	printf("pase %d\n",__LINE__);
 	/*actualizo archivo .idx*/
+	/*busco el registro que tengo que eliminar*/
+	if ( (f_block_reg = fopen(name_f_block_reg,"r+")) == NULL ) return -1;
+	while ( !feof(f_block_reg) ){
+		if ( fread(&reg_b,sizeof(BLOCK_REG_T),1,f_block_reg) != 1 ) continue;
+		if ( reg_b.id_reg == ID )
+			break;
+	}
+	printf("registro borrado= %ld   en bloque = %d\n",reg_b.id_reg,reg_b.block);
+	/*justifico en archivo a la izquieda*/
+	while ( !feof(f_block_reg) ){
+		cant = fread(&buffer,sizeof(BLOCK_REG_T),10,f_block_reg);
+		fseek(f_block_reg, -cant*sizeof(BLOCK_REG_T)-1, SEEK_CUR);
+		for (i=0; i<cant; i++){
+			fwrite(&buffer[i],sizeof(BLOCK_REG_T),1,f_block_reg);
+			if ( feof(f_block_reg) ) continue;
+		}
+		if ( feof(f_block_reg) ) continue;
+		fseek(f_block_reg, sizeof(BLOCK_REG_T), SEEK_CUR);
+	}
 	
-	
-	
+	/*trunco el ultimo registro del archivo
+	fseek(f_block_reg,0,SEEK_END);
+	truncate(name_f_block_reg,ftell(f_block_reg)-sizeof(BLOCK_REG_T));
+	*/
+	fclose(f_block_reg);
+
 	free(bloque);
 
 return 0;
-- 
2.43.0