Free Hero Mesh

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Overview
Comment:Move around some BEGIN and COMMIT commands to avoid misnested transactions in some cases
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: b4a4337c4ace814315df7bc4bba02504f3ab8696
User & Date: user on 2018-06-10 06:10:45
Other Links: manifest | tags
Context
2018-06-10
16:34
Add some SQL functions check-in: 81f52e6f42 user: user tags: trunk
06:10
Move around some BEGIN and COMMIT commands to avoid misnested transactions in some cases check-in: b4a4337c4a user: user tags: trunk
05:27
Corrections and completions of class loading; implement -x switch; correction to schema check-in: 08625cbba0 user: user tags: trunk
Changes
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Modified main.c from [4a37978eeb] to [8ee65d5a1a].

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}

static sqlite3_int64 reset_usercache(FILE*fp,const char*nam,struct stat*stats,const char*suffix) {
  sqlite3_stmt*st;
  sqlite3_int64 t,id;
  char buf[128];
  int i,z;
  if(z=sqlite3_exec(userdb,"BEGIN;",0,0,0)) fatal("SQL error (%d): %s\n",z,sqlite3_errmsg(userdb));
  if(z=sqlite3_prepare_v2(userdb,"DELETE FROM `USERCACHEDATA` WHERE `FILE` = (SELECT `ID` FROM `USERCACHEINDEX` WHERE `NAME` = ?1);",-1,&st,0)) {
    fatal("SQL error (%d): %s\n",z,sqlite3_errmsg(userdb));
  }
  sqlite3_bind_text(st,1,nam,-1,0);
  while((z=sqlite3_step(st))==SQLITE_ROW);
  if(z!=SQLITE_DONE) fatal("SQL error (%d): %s\n",z,sqlite3_errmsg(userdb));
  sqlite3_finalize(st);








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}

static sqlite3_int64 reset_usercache(FILE*fp,const char*nam,struct stat*stats,const char*suffix) {
  sqlite3_stmt*st;
  sqlite3_int64 t,id;
  char buf[128];
  int i,z;

  if(z=sqlite3_prepare_v2(userdb,"DELETE FROM `USERCACHEDATA` WHERE `FILE` = (SELECT `ID` FROM `USERCACHEINDEX` WHERE `NAME` = ?1);",-1,&st,0)) {
    fatal("SQL error (%d): %s\n",z,sqlite3_errmsg(userdb));
  }
  sqlite3_bind_text(st,1,nam,-1,0);
  while((z=sqlite3_step(st))==SQLITE_ROW);
  if(z!=SQLITE_DONE) fatal("SQL error (%d): %s\n",z,sqlite3_errmsg(userdb));
  sqlite3_finalize(st);
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    }
    while((z=sqlite3_step(st))==SQLITE_ROW);
    if(z!=SQLITE_DONE) fatal("SQL error (%d): %s\n",z,sqlite3_errmsg(userdb));
    fseek(fp,t,SEEK_CUR);
  }
  done:
  sqlite3_finalize(st);
  if(z=sqlite3_exec(userdb,"COMMIT;",0,0,0)) fatal("SQL error (%d): %s\n",z,sqlite3_errmsg(userdb));
  return id;
}

unsigned char*read_lump(int sol,int lvl,long*sz,sqlite3_value**us) {
  // Returns a pointer to the data; must be freed using free().
  // If there is no data, returns null and sets *sz and *us to zero.
  // Third argument is a pointer to a variable to store the data size (must be not null).








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    }
    while((z=sqlite3_step(st))==SQLITE_ROW);
    if(z!=SQLITE_DONE) fatal("SQL error (%d): %s\n",z,sqlite3_errmsg(userdb));
    fseek(fp,t,SEEK_CUR);
  }
  done:
  sqlite3_finalize(st);

  return id;
}

unsigned char*read_lump(int sol,int lvl,long*sz,sqlite3_value**us) {
  // Returns a pointer to the data; must be freed using free().
  // If there is no data, returns null and sets *sz and *us to zero.
  // Third argument is a pointer to a variable to store the data size (must be not null).
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  int z;
  sqlite3_int64 t1,t2;
  char*nam1;
  char*nam2;
  char*nam3;
  struct stat fst;
  fprintf(stderr,"Initializing user cache...\n");

  if(z=sqlite3_prepare_v2(userdb,"SELECT `ID`, `TIME` FROM `USERCACHEINDEX` WHERE `NAME` = ?1;",-1,&st,0)) fatal("SQL error (%d): %s\n",z,sqlite3_errmsg(userdb));
  nam1=sqlite3_mprintf("%s.level",basefilename);
  if(!nam1) fatal("Allocation failed\n");
  nam2=realpath(nam1,0);
  if(!nam2) fatal("Cannot find real path of '%s': %m\n",nam1);
  levelfp=fopen(nam2,"r");
  if(!levelfp) fatal("Cannot open '%s' for reading: %m\n",nam2);








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  int z;
  sqlite3_int64 t1,t2;
  char*nam1;
  char*nam2;
  char*nam3;
  struct stat fst;
  fprintf(stderr,"Initializing user cache...\n");
  if(z=sqlite3_exec(userdb,"BEGIN;",0,0,0)) fatal("SQL error (%d): %s\n",z,sqlite3_errmsg(userdb));
  if(z=sqlite3_prepare_v2(userdb,"SELECT `ID`, `TIME` FROM `USERCACHEINDEX` WHERE `NAME` = ?1;",-1,&st,0)) fatal("SQL error (%d): %s\n",z,sqlite3_errmsg(userdb));
  nam1=sqlite3_mprintf("%s.level",basefilename);
  if(!nam1) fatal("Allocation failed\n");
  nam2=realpath(nam1,0);
  if(!nam2) fatal("Cannot find real path of '%s': %m\n",nam1);
  levelfp=fopen(nam2,"r");
  if(!levelfp) fatal("Cannot open '%s' for reading: %m\n",nam2);
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  if(!fst.st_size) fatal("File '%s' has zero size\n",nam2);
  if(fst.st_mtime>t2 || fst.st_ctime>t2) solutionuc=reset_usercache(solutionfp,nam3,&fst,".SOL");
  free(nam2);
  free(nam3);
  if(z=sqlite3_prepare_v3(userdb,"SELECT * FROM `USERCACHEDATA` WHERE `FILE` = ?1 AND `LEVEL` = ?2;",-1,SQLITE_PREPARE_PERSISTENT,&readusercachest,0)) {
    fatal("SQL error (%d): %s\n",z,sqlite3_errmsg(userdb));
  }

  fprintf(stderr,"Done\n");
}

static void init_sql(void) {
  char*s;
  char*p;
  const char*v;








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  if(!fst.st_size) fatal("File '%s' has zero size\n",nam2);
  if(fst.st_mtime>t2 || fst.st_ctime>t2) solutionuc=reset_usercache(solutionfp,nam3,&fst,".SOL");
  free(nam2);
  free(nam3);
  if(z=sqlite3_prepare_v3(userdb,"SELECT * FROM `USERCACHEDATA` WHERE `FILE` = ?1 AND `LEVEL` = ?2;",-1,SQLITE_PREPARE_PERSISTENT,&readusercachest,0)) {
    fatal("SQL error (%d): %s\n",z,sqlite3_errmsg(userdb));
  }
  if(z=sqlite3_exec(userdb,"COMMIT;",0,0,0)) fatal("SQL error (%d): %s\n",z,sqlite3_errmsg(userdb));
  fprintf(stderr,"Done\n");
}

static void init_sql(void) {
  char*s;
  char*p;
  const char*v;
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Modified picture.c from [95be04510a] to [6b3d3ff78d].

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    i=j=0;
    sscanf(v," %d %n",&i,&j);
    if(!j) break;
    if(i<2 || i>255) fatal("Invalid picture size %d\n",i);
    wantsize[nwantsize++]=i;
    v+=j;
  }
  sqlite3_exec(userdb,"BEGIN;",0,0,0);
  if(sqlite3_prepare_v2(userdb,"INSERT INTO `PICTURES`(`ID`,`NAME`,`OFFSET`) VALUES(?1,?2,?3);",-1,&st,0))
   fatal("Unable to prepare SQL statement while loading pictures: %s\n",sqlite3_errmsg(userdb));
  nam=malloc(256);
  if(!nam) fatal("Allocation failed\n");
  n=0;
  memset(havesize,0,256*sizeof(Uint16));
  while(!feof(fp)) {








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    i=j=0;
    sscanf(v," %d %n",&i,&j);
    if(!j) break;
    if(i<2 || i>255) fatal("Invalid picture size %d\n",i);
    wantsize[nwantsize++]=i;
    v+=j;
  }
  if(n=sqlite3_exec(userdb,"BEGIN;",0,0,0)) fatal("SQL error (%d): %s\n",n,sqlite3_errmsg(userdb));
  if(sqlite3_prepare_v2(userdb,"INSERT INTO `PICTURES`(`ID`,`NAME`,`OFFSET`) VALUES(?1,?2,?3);",-1,&st,0))
   fatal("Unable to prepare SQL statement while loading pictures: %s\n",sqlite3_errmsg(userdb));
  nam=malloc(256);
  if(!nam) fatal("Allocation failed\n");
  n=0;
  memset(havesize,0,256*sizeof(Uint16));
  while(!feof(fp)) {
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  for(i=0;i<n;i++) {
    if((j=sqlite3_step(st))!=SQLITE_ROW) fatal("SQL error (%d): %s\n",j,j==SQLITE_DONE?"Incorrect number of rows in a temporary table":sqlite3_errmsg(userdb));
    fseek(fp,sqlite3_column_int64(st,1),SEEK_SET);
    load_one_picture(fp,sqlite3_column_int(st,0),altImage);
  }
  sqlite3_finalize(st);
  fclose(fp);
  sqlite3_exec(userdb,"COMMIT;",0,0,0);
  SDL_SetColorKey(picts,SDL_SRCCOLORKEY|SDL_RLEACCEL,0);
done:

  fprintf(stderr,"Done\n");
}

void init_screen(void) {
  const char*v;
  int w,h,i;
  if(main_options['x']) return;








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  for(i=0;i<n;i++) {
    if((j=sqlite3_step(st))!=SQLITE_ROW) fatal("SQL error (%d): %s\n",j,j==SQLITE_DONE?"Incorrect number of rows in a temporary table":sqlite3_errmsg(userdb));
    fseek(fp,sqlite3_column_int64(st,1),SEEK_SET);
    load_one_picture(fp,sqlite3_column_int(st,0),altImage);
  }
  sqlite3_finalize(st);
  fclose(fp);

  SDL_SetColorKey(picts,SDL_SRCCOLORKEY|SDL_RLEACCEL,0);
done:
  if(n=sqlite3_exec(userdb,"COMMIT;",0,0,0)) fatal("SQL error (%d): %s\n",n,sqlite3_errmsg(userdb));
  fprintf(stderr,"Done\n");
}

void init_screen(void) {
  const char*v;
  int w,h,i;
  if(main_options['x']) return;
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