Commit Graph

13 Commits

Author SHA1 Message Date
Flavio Ceolin
0c4bb833de lib: posix: Make statements evaluate boolean expressions
MISRA-C requires that the if statement has essentially Boolean type.

MISRA-C rule 14.4

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
2019-01-07 08:52:07 -05:00
Flavio Ceolin
17c7db6bbe lib: posix: Explicitly ignoring return of memcpy
According with MISRA-C the value returned by a non-void function has
to be used. As memcpy return is almost useless, we are explicitly
ignoring it.

MISRA-C rule 17.7

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
2018-12-19 14:37:25 +01:00
Spoorthi K
df5c29d3d1 lib: POSIX: Add check for deadlock in pthread_join
Calling pthread_join() with current thread would lead
to deadlock. Adding check for it and to return
appropriate error code.

Signed-off-by: Spoorthi K <spoorthi.k@intel.com>
2018-09-29 06:01:39 -04:00
Niranjhana N
d3ab9a37d8 lib: posix: remove return error code
ENOTSUP is not being used correctly in
pthread_attr_setschedparam(), hence
replaced its check for EINVAL instead.

Signed-off-by: Niranjhana N <niranjhana.n@intel.com>
2018-09-28 06:53:24 +05:30
Niranjhana N
7e6c103ff5 lib: posix: fix return error code
Added EAGAIN error code in pthread_create()
with fixing the EINVAL return as it is
limited to attribute checking.

Signed-off-by: Niranjhana N <niranjhana.n@intel.com>
2018-09-28 06:53:24 +05:30
Niranjhana N
482579e491 lib: posix: add error code return
Added return of ESRCH error code in
pthread_getschedparam() when the
specified thread could not be found.

Signed-off-by: Niranjhana N <niranjhana.n@intel.com>
2018-09-28 06:53:24 +05:30
Niranjhana N
4462dfabb6 lib: posix: fix couple of race conditions
Added locks around thread state accesses in
pthread_create() to avoid race conditions.

Signed-off-by: Niranjhana N <niranjhana.n@intel.com>
2018-09-21 00:24:22 -04:00
Rajavardhan Gundi
ac787e0e97 lib/posix: Use static allocation for posix_thread objects
The memory occupied by posix_thread objects are not significant.
Hence, no point in using dynamic allocation.

Addresses #8717.

Signed-off-by: Rajavardhan Gundi <rajavardhan.gundi@intel.com>
2018-08-29 15:14:05 -04:00
Niranjhana N
414c39fc94 posix: add pthread_key and pthread_once APIs
Added 4 new pthread_key APIs for thread-specific data
key creation, deletion, setting and getting the values.

Added a key list to the posix_struct for threads.

Added pthread_once API.

Signed-off-by: Niranjhana N <niranjhana.n@intel.com>
2018-07-19 08:46:33 -04:00
Punit Vara
4e3d99ed7e lib: posix: Use default attribute for mutex
Use NULL as argument to intialize attribute values with default
attributes.

Signed-off-by: Punit Vara <punit.vara@intel.com>
2018-05-18 23:02:28 +03:00
Ramakrishna Pallala
bcdfa76ff3 lib: posix: Fix pthread_attr_init() return code
pthread_attr_init() should not return EBUSY as per POSIX spec
so fixed this by return ENOMEM if the attr pointer is NULL.

Also fixed the attribute initialization logic by copying the
init_pthread_attrs to the attr.

Fixes Issue #7480

Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
2018-05-16 23:15:21 +03:00
Ramakrishna Pallala
4226c6d8b2 lib: posix: Fix mutex locking in pthread_cancel
Fix mutex locking sequence in pthread_cancel()

Coverity-CID: 183055

Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
2018-04-05 16:43:05 -04:00
Ramakrishna Pallala
f603e603bb lib: posix: Move posix layer from 'kernel' to 'lib'
Move posix layer from 'kernel' to 'lib' folder as it is not
a core kernel feature.

Fixed posix header file dependencies as part of the move and
also removed NEWLIBC related macros from posix headers.

Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
2018-04-05 16:43:05 -04:00