Commit graph

13 commits

Author SHA1 Message Date
hujun5
9f835f63bd mm/iob: fix some comment in https://github.com/apache/nuttx/pull/14764
reason:
Since we decoupled counting and sem count,
we changed the meanings of three key global variables:

g_iob_count: A positive number indicates the available number
  of IOBs, while a negative number indicates the number of waiters in iob_alloc (when throttle == false).
g_throttle_wait: Represents the number of waiters in
  iob_alloc (when throttle == true), and it will not be negative.
g_qentry_wait: Represents the number of waiters for
  qentry, and it will not be negative.

Signed-off-by: hujun5 <hujun5@xiaomi.com>
2024-11-19 15:39:00 +08:00
hujun5
961767b2a4 mm/iob: remove csection
reason:
We decouple semcount from business logic
by using an independent counting variable,
which allows us to remove critical sections in many cases.

Signed-off-by: hujun5 <hujun5@xiaomi.com>
2024-11-16 12:37:14 -03:00
Alin Jerpelea
339457dda3 mm: migrate to SPDX identifier
Most tools used for compliance and SBOM generation use SPDX identifiers
This change brings us a step closer to an easy SBOM generation.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2024-09-13 08:49:05 +08:00
Alin Jerpelea
bcee9c391c mm: Author Gregory Nutt: update licenses to Apache
Gregory Nutt has submitted the SGA and we can mograte the licenses
to Apache.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-02-09 01:21:53 -08:00
Gregory Nutt
a569006fd8 sched/: Make more naming consistent
Rename various functions per the quidelines of https://cwiki.apache.org/confluence/display/NUTTX/Naming+of+OS+Internal+Functions

    nxsem_setprotocol -> nxsem_set_protocol
    nxsem_getprotocol -> nxsem_get_protocol
    nxsem_getvalue -> nxsem_get_value
2020-05-17 14:01:00 -03:00
Nathan Hartman
a5e643b0cd Fix typos in comments and documentation. 2020-03-16 20:01:11 -06:00
Gregory Nutt
1382ea5447 mm/: Coding style clean-up
Run tools/nxstyle against all C files under mm/ and correct coding standard violations.
2020-02-13 15:16:53 +01:00
Xiang Xiao
5c80b94820 Replace #include <semaphore.h> to #include <nuttx/semaphore.h>
Since the kernel side should call nxsem_xxx instead and remove the unused inclusion
2020-02-01 08:27:30 -06:00
Xiang Xiao
1ecc33b7db mm/iob: Miscellaneous changes and fixes from code review. 2019-01-26 09:56:27 -06:00
Gregory Nutt
dec7ecbd56 net/tcp/tcp_recvwindow.c: In order to receive data we must not only have IOBs available, but we must also have at least one IOB chain qentry available. Otherwise, we will advertise that we an buffer a lot of data when, in fact, we cannot. This is an expermental fix to a performance problem noted by Masayuki Ishikawa. 2018-09-22 09:33:29 -06:00
Gregory Nutt
76eec53e4f mm/iob: iob_navail() was returning the number of free IOB chain queue entries, not the number of free IOBs. Completely misnamed. 2018-09-12 06:40:18 -06:00
Juha Niskanen
044d538da3 Fix some errors found during upstream merge 2018-06-28 07:06:57 -06:00
Gregory Nutt
0786b5d053 net/tcp: Re-think CONFIG_NET_TCP_RWND_CONTROL TCP windowing controls. 2018-06-24 14:46:12 -06:00