This patch unifies the patterns of using the 'Genode' and 'Libc'
namespaces.
Types defined in the 'internal/' headers reside in the 'Libc'
namespace. The code in the headers does not need to use the
'Libc::' prefix.
Compilation units import the 'Libc' namespace after the definition of
local types. Local types reside in the 'Libc' namespace (and should
eventually move to an 'internal/' header).
Since the 'Libc' namespace imports the 'Genode' namespace, there is
no need to use the 'Genode::' prefix. Consequently, code in the
compilation units rarely need to qualify the 'Genode' or 'Libc'
namespaces.
There are a few cases where the 'Libc', the 'Genode', and the global
(libc) namespaces are ambigious. In these cases, an explicit
clarification is needed:
- 'Genode::Allocator' differs from 'Libc::Allocator'.
- 'Genode::Env' differs from 'Libc::Env'.
- Genode's string functions (strcmp, memcpy, strcpy) conflict
with the names of the (global) libc functions.
- There exist both 'Genode::uint64_t' and the libc'c 'uint64_t'.
Issue #3497
- readv_writev: move 'rw_lock' instance into a function scope,
constructing the instance on the first access.
- select: move 'select_cb_list' instance into function scope.
- thread: move 'key_list_lock' and 'keys' into function scope.
- rwlock, semaphore, socket_fs_plugin, thread, thread_create:
instantiate 'Libc::Allocator' per use, alleviating the need for a
global instance.
Issue #3496
This removes implementations of and also references to anonymous new and
delete operators from the libc implementation. As allocators for
new/delete Libc::Allocator instances are used, which (paradoxically) map
to libc malloc/free.
Make sure that the rwlock is allocated before a lock operation is
performed. This case occurs if a static rwlock was create by using
PTHREAD_RWLOCK_INITIALIZER. Same goes for PTHREAD_CONDS_INITIALIZER.
Fixes#3262.
The pthread API is considered a standard feature of libc so better to
simply merge it with the libc. Pthreads are in fact already a part of
the libc in the form of weak symbols. This merger is also a prerequisite
for better integrating pthreads with the libc I/O task.
Fix#3054
