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base: append label per line properly (log service)

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If newlines are in the string send to the core log service, they don't get
the label properly appended before each output. The messages then look like
they are coming from core.

Fixes #1368
This commit is contained in:
Alexander Boettcher 2014-12-18 15:55:30 +01:00 committed by Christian Helmuth
parent 25eec75ad8
commit 336018b493
1 changed files with 14 additions and 4 deletions
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18
repos/base/src/core/include/log_session_component.h
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@ -52,7 +52,7 @@ namespace Genode {
}
char const *string = string_buf.string();
int len = strlen(string);
size_t len = strlen(string);
/*
* Heuristic: The Log console implementation flushes
@ -70,11 +70,21 @@ namespace Genode {
return len;
}
printf("[%s] %s", _label, string);
char buf[string_buf.MAX_SIZE];
unsigned from_i = 0;
for (unsigned i = 0; i < len; i++) {
if (string[i] == '\n') {
memcpy(buf, string + from_i, i - from_i);
buf[i - from_i] = 0;
printf("[%s] %s\n", _label, buf);
from_i = i + 1;
}
}
/* if last character of string was not a line break, add one */
if ((len > 0) && (string[len - 1] != '\n'))
printf("\n");
if (from_i < len)
printf("[%s] %s\n", _label, string + from_i);
return len;
}