for installed header files, add comment saying where they came from

array.h

@@ -1,6 +1,8 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef ARRAY_H
 #define ARRAY_H
 
+#include <stddef.h>
 #include "uint64.h"
 
 typedef struct {
@@ -11,10 +13,12 @@ typedef struct {
   /* p and allocated nonzero: array is allocated */
   /* p and allocated zero: array is unallocated */
   /* p zero and allocated < 0: array is failed */
+
+  size_t headroom;	/* the actual pointer for free() and realloc() is p-headroom */
 } array;
 
 void* array_allocate(array* x,uint64 membersize,int64 pos);
-void* array_get(array* x,uint64 membersize,int64 pos);
+void* array_get(const array* const x,uint64 membersize,int64 pos);
 void* array_start(const array* const x);
 int64 array_length(const array* const x,uint64 membersize);
 int64 array_bytes(const array* const x);
@@ -30,6 +34,9 @@ void array_cats0(array* to,const char* from);
 void array_cat0(array* to);
 void array_cate(array* to,const array* const from,int64 pos,int64 stop);
 
+void array_shift(array* x,uint64 membersize,uint64 members);
+void array_chop(array* x,uint64 membersize,uint64 members);
+
 #define array_failed(x) (array_bytes(x)==-1)
 #define array_unallocated(x) (array_bytes(x)==0)
 

array/array_get.c

@@ -15,11 +15,11 @@
    (pos+1)*sizeof(t) bytes are initialized.
 #endif
 
-void* array_get(array* x,uint64 membersize,int64 pos) {
+void* array_get(const array* const x,uint64 membersize,int64 pos) {
   uint64 wanted;
   if (__unlikely(pos+1<1)) return 0;
   if (__unlikely(!umult64(membersize,pos,&wanted))) return 0;
 
   if (__unlikely((int64)wanted >= x->allocated || wanted>=x->initialized)) return 0;
-  return x->p+pos*membersize;
+  return (void*)(x->p+pos*membersize);
 }

buffer.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef BUFFER_H
 #define BUFFER_H
 

byte.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef BYTE_H
 #define BYTE_H
 

case.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef CASE_H
 #define CASE_H
 

cdb.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef CDB_H
 #define CDB_H
 

cdb_make.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef CDB_MAKE_H
 #define CDB_MAKE_H
 

dns.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef DNS_H
 #define DNS_H
 

errmsg.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef ERRMSG_H
 #define ERRMSG_H
 

fmt.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef FMT_H
 #define FMT_H
 

iarray.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef IARRAY_H
 #define IARRAY_H
 

io.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef IO_H
 #define IO_H
 
@@ -103,6 +104,8 @@ int io_passfd(int64 sock,int64 fd);
  * process.  Return sock if ok, -1 on error, setting errno. */
 int64 io_receivefd(int64 sock);
 
+int io_starteventloopthread(unsigned int threads);
+
 typedef int64 (*io_write_callback)(int64 s,const void* buf,uint64 n);
 
 /* used internally, but hey, who knows */

io_internal.h

@@ -50,6 +50,9 @@ typedef struct {
 #endif
 } io_entry;
 
+extern int io_multithreaded;
+extern int io_sockets[2];
+
 my_extern array io_fds;
 my_extern uint64 io_wanted_fds;
 my_extern array io_pollfds;
@@ -92,4 +95,16 @@ int64 io_waituntil2(int64 milliseconds);
 
 void io_sigpipe(void);
 
+/* return next descriptor from io_wait that can be read from */
+int64 io_canread_unlocked();
+/* return next descriptor from io_wait that can be written to */
+int64 io_canwrite_unlocked();
+/* return next descriptor with expired timeout */
+int64 io_timeouted_unlocked();
+
+struct eventpacket {
+  int fd;
+  enum { CANREAD, CANWRITE, TIMEOUT } what;
+};
+
 #define debug_printf(x)

iob.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef _IOB_H
 #define _IOB_H
 

iopause.h1

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef IOPAUSE_H
 #define IOPAUSE_H
 

iopause.h2

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef IOPAUSE_H
 #define IOPAUSE_H
 

ip4.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef IP4_H
 #define IP4_H
 

ip6.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef IP6_H
 #define IP6_H
 

mmap.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef MMAP_H
 #define MMAP_H
 

ndelay.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef NDELAY_H
 #define NDELAY_H
 

open.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef OPEN_H
 #define OPEN_H
 

openreadclose.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef OPENREADCLOSE_H
 #define OPENREADCLOSE_H
 

rangecheck.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef RANGECHECK_H
 #define RANGECHECK_H
 

safemult.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef _SAFEMULT_H
 #define _SAFEMULT_H
 

scan.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef SCAN_H
 #define SCAN_H
 

socket.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef SOCKET_H
 #define SOCKET_H
 

str.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef STR_H
 #define STR_H
 

stralloc.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef STRALLOC_H
 #define STRALLOC_H
 

tai.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef TAI_H
 #define TAI_H
 

taia.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef TAIA_H
 #define TAIA_H
 

textcode.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef TEXTCODE_H
 #define TEXTCODE_H
 

uint16.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef UINT16_H
 #define UINT16_H
 

uint32.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef UINT32_H
 #define UINT32_H
 

uint64.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef UINT64_H
 #define UINT64_H
 

va_narg.h

@@ -1,3 +1,4 @@
+/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
 #ifndef _VA_NARG_H
 #define _VA_NARG_H