mirror/lwip
1
0
Fork 0
mirror of https://github.com/lwip-tcpip/lwip.git synced 2024-10-05 22:29:49 +00:00
Code Issues Packages Projects Releases Wiki Activity

Added more threading info

Browse Source
This commit is contained in:
goldsimon 2009-05-07 14:15:51 +00:00
parent 95f6dc7011
commit e66d315c9b
1 changed files with 10 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
doc/rawapi.txt
View File

@ -35,14 +35,22 @@ communicate with this main thread through message passing.
other threads or an ISR is very limited! Only functions other threads or an ISR is very limited! Only functions
from these API header files are thread-safe: from these API header files are thread-safe:
- api.h - api.h
- sockets.h - netdb.h
- netifapi.h - netifapi.h
- sockets.h
- sys.h - sys.h
Additionaly, memory (de-)allocation functions may be
called from multiple threads (not ISR!) with NO_SYS=0
since they are protected by SYS_LIGHTWEIGHT_PROT and/or
semaphores.
Only since 1.3.0, if SYS_LIGHTWEIGHT_PROT is set to 1 Only since 1.3.0, if SYS_LIGHTWEIGHT_PROT is set to 1
and LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT is set to 1, and LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT is set to 1,
pbuf_free() may also be called from another thread or pbuf_free() may also be called from another thread or
an ISR! an ISR (since only then, mem_free - for PBUF_RAM - may
be called from an ISR: otherwise, the HEAP is only
protected by semaphores).
** The remainder of this document discusses the "raw" API. ** ** The remainder of this document discusses the "raw" API. **