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build warning in old version of visual studio #10449

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jay opened this issue Feb 9, 2023 · 2 comments
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build warning in old version of visual studio #10449

jay opened this issue Feb 9, 2023 · 2 comments
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jay commented Feb 9, 2023

build warning in old version of visual studio, in cf_h2_send -1 is assigned to a size_t in a bunch of places, eg len = -1

........\lib\http2.c(1978): warning C4245: '=' : conversion from 'int' to 'size_t', signed/unsigned mismatch

I'm using a pre generated build configuration from the projects directory with enabled http2 added. Possibly needs ssize_t sent or I can just ignore it. I notice none of the CI builds show this warning.

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@jay jay added the build label Feb 9, 2023
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icing commented Feb 9, 2023

Indeed, that does not look sound. I'll add a ssize_t for the return value.

icing added a commit to icing/curl that referenced this issue Feb 9, 2023
@icing
nghttp2, better handling of cf_h2_send() return value.
0f9ab8f 
- use explicit ssize_t return var instead of mis-using size_t len for -1 returns.

Refs curl#10449
@icing icing mentioned this issue Feb 9, 2023
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icing commented Feb 9, 2023

Should be addressed in #10450.

icing added a commit to icing/curl that referenced this issue Feb 27, 2023
@icing
nghttp2, better handling of cf_h2_send() return value.
da64dd2 
- use explicit ssize_t return var instead of mis-using size_t len for -1 returns.

Refs curl#10449
icing added a commit to icing/curl that referenced this issue Feb 27, 2023
@icing
Fixing busy loop on large uploads for HTTP/2.
97633e8 
- refs curl#10449 with improvements in h2_cf_send() and nwritten return code
  handling. Cherry picked and improved after review by @jay
- setting KEEP_SEND_PAUSE flags when exhausting remote HTTP/2 window
  size of a stream.
- clearing KEEP_SEND_PAUSE when receiving HTTP/2 window updates
  on a paused stream.
@vszakats vszakats mentioned this issue Feb 27, 2023
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@jay jay closed this as completed in d9ccc75 Mar 1, 2023
@dfandrich dfandrich mentioned this issue Mar 24, 2023
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bch pushed a commit to bch/curl that referenced this issue Jul 19, 2023
@icing @bch
http2: fix upload busy loop
da9a893 
- Set KEEP_SEND_PAUSE when exhausting remote HTTP/2 window size of a
  stream.

- Clear KEEP_SEND_PAUSE when receiving HTTP/2 window updates on a paused
  stream.

- Also fix http2 send compiler warnings reported in curl#10449.

Prior to this change, starting in 71b7e01 which precedes 7.88.0,
libcurl may eat CPU during HTTP/2 upload.

Reported-by: Jay Satiro

Fixes curl#10449
Fixes curl#10618
Closes curl#10627
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