/* * static char ID[] = "@(#) define3.h: 1.2 3/16/82"; */ /* mnemonic to indicate that a file is closed; cannot equal a file descriptor */ #define CLOSED (-1) /* mnemonic to indicate a null manager link; cannot equal an index */ #define END (-1) /* mnemonic to indicate an impossible hash value */ #define HASHNULL 0 /* mnemonic to indicate a failed search for an id */ #define IDNOTFOUND (-3l) /* mnemonic to indicate a failed search; distinct from ERROR or SUCCESS */ #define NOTFOUND (-2) /* mnemonic to indicate a nonexistent file; distinct from CLOSED or descriptor */ #define NOTMADE (-2) /* mnemonic to indicate a null ref/chng flag; distinct from RNLY or WRTN */ #define RCNULL (-1) /* macros to access library functions through the LIB structures */ #define MALLOC(size) (*Glib_mem->liballoc)(size) #define MBUILDNAME(name,i) (*Glib_file->libbuildname)(name,i) #define MCLOSE(designator) (*Glib_file->libclose)(designator) #define MCREATE(name,mode) (*Glib_file->libcreate)(name,mode) #define MFREE(ptr) (*Glib_mem->libfree)(ptr) #define MOPEN(name,perms) (*Glib_file->libopen)(name,perms) #define MREAD(designator,buffer,nbytes) (*Glib_file->libread)(designator,buffer,nbytes) #define MSEEK(designator,position) (*Glib_file->libseek)(designator,position) #define MUNLINK(name) (*Glib_file->libunlink)(name) #define MWRITE(designator,buffer,nbytes) (*Glib_file->libwrite)(designator,buffer,nbytes) /* macro to check id for valid range */ #define INVALID(sp,id) ( !( ((id)>=0) && ((id)<(sp)->maxpage) ) ) /* macro to check id for valid alignment */ #define ALIGNID(id) ( ((id)+sizeof(BOUNDARY)-1)/sizeof(BOUNDARY)*sizeof(BOUNDARY) )